Litebird-sim

- **Breaking change**: new API for pointing computation [319](https://github.com/litebird/litebird_sim/pull/319). Here is a in-depth list of all the breaking changes in this PR:

1. Quaternions describing the orientation of the detectors must now be encoded using a `RotQuaternion` object; plain NumPy arrays are no longer supported.

2. Quaternions are now computed using the function `prepare_pointings()` (low-level) and the method `Simulation.prepare_pointings()` (high-level, you should use this). Pointings are no longer kept in memory until you retrieve them using `Observation.get_pointings()`.

3. Pointings are no longer accessible using the field `pointings` in the `Observation` class. (Not 100% true, see below.) They are computed on the fly by the method `Observation.get_pointings()`.

4. The way pointings are returned differs from how they were stored before. The result of a call to `Observation.get_pointings()` is a 2-element tuple: the first element contains a `(N, 3)` NumPy array containing the colatitude θ, the longitude φ, and the orientation ψ, while the second element is an array of the angles of the HWP. Thus, the orientation angle ψ is now stored together with θ and φ.

5. If you want to pre-compute all the pointings instead of computing them on the fly each time you call `Observation.get_pointings()`, you can use the function `precompute_pointings()` (low-level) and the method `Simulation.precompute_pointings()` (high-level). This initializes a number of fields in each `Observation` object, but they are shaped as described in the previous point, i.e., ψ is kept in the same matrix as θ and φ.

6. The argument `dtype_tod` of the method `Simulation.create_observations` has become `tod_type` for consistency with other similar parameters.

7. The format of the HDF5 files has been slightly changed to let additional information about pointings to be stored.

See the comments in [PR319](https://github.com/litebird/litebird_sim/pull/319) and discussion [#312](https://github.com/litebird/litebird_sim/discussions/312) for more details.

- Add data splits in time and detector space to destriped maps [309](https://github.com/litebird/litebird_sim/pull/309)

- Fix issue [317](https://github.com/litebird/litebird_sim/issues/317)

- Implement a time profiler [308](https://github.com/litebird/litebird_sim/pull/308)

- **Breaking change**: Disambiguate between “polarization angle” and “orientation” [305](https://github.com/litebird/litebird_sim/pull/305). A few functions have been renamed as a consequence of this change; however, they are low-level functions that are used internally (`compute_pointing_and_polangle`, `all_compute_pointing_and_polangle`, `polarization_angle`), so external codes should be unaffected by this PR.

- **Breaking change**: Reworking of the IO, `write_observations` and `read_observations` are now part of the class simulation [293](https://github.com/litebird/litebird_sim/pull/293)

- Mbs optionally returns alms instead of maps [306](https://github.com/litebird/litebird_sim/pull/306)

- Include the possibility to pass components to fill_tods, add_dipole and add_noise [302](https://github.com/litebird/litebird_sim/issues/302)

- Add data splits in time and detector space to binned maps [291](https://github.com/litebird/litebird_sim/pull/291)

- Add support for partial multithreading using Numba [276](https://github.com/litebird/litebird_sim/pull/276)

- Fixing bug in mbs to pass general bandpass to mbs [271](https://github.com/litebird/litebird_sim/pull/271)

- Support for numpy.float128 made optional, this fixes importing issue on ARM architectures [286](https://github.com/litebird/litebird_sim/pull/286)

- Improve the documentation about noise simulations [283](https://github.com/litebird/litebird_sim/pull/283)

- Use libinsdb to access the IMO [282](https://github.com/litebird/litebird_sim/pull/282)

- Move from `flake8`/`black` to `ruff` [281](https://github.com/litebird/litebird_sim/pull/281/)

- New module to simulate HWP systematics [232](https://github.com/litebird/litebird_sim/pull/232)

- **Breaking change**: Change the interface to the binner, implement a new destriper, and make the dependency on TOAST optional [260](https://github.com/litebird/litebird_sim/pull/260)

- **Breaking change**: Drop support for Python 3.7 and 3.8 [254](https://github.com/litebird/litebird_sim/pull/254)

- **Breaking change**: Fix noise seed inconsistency [256](https://github.com/litebird/litebird_sim/pull/256)

- Be more robust when parsing UUIDs and URLs coming from the IMo [274](https://github.com/litebird/litebird_sim/pull/274)

- Solve typing error in destriper [272](https://github.com/litebird/litebird_sim/pull/272)

- Include default PTEP IMO for tests and demos [230](https://github.com/litebird/litebird_sim/pull/230)

- Fixed typo in timeordered.rst [250](https://github.com/litebird/litebird_sim/pull/250)

- Fix error in reading observation when it does not have tod field [262](https://github.com/litebird/litebird_sim/pull/262)

- Bug in mbs for band integration solved [251](https://github.com/litebird/litebird_sim/pull/251)

- Implement a bandpass generator [160](https://github.com/litebird/litebird_sim/pull/160), [#200](https://github.com/litebird/litebird_sim/pull/200)

- Some memory optimization [245](https://github.com/litebird/litebird_sim/pull/245)

- Improve the docstring for `scan_map_in_observations` [248](https://github.com/litebird/litebird_sim/pull/248)

- New interface for `make_bin_map` in `Simulation` [244](https://github.com/litebird/litebird_sim/pull/244)

- Added gain drift simulation module [243](https://github.com/litebird/litebird_sim/pull/243)

- Enable the use of other names than `tod` when calling the TOAST2 destriper [242](https://github.com/litebird/litebird_sim/pull/242)

- Use Poetry instead of Pip to specify the dependencies for the documentation [237](https://github.com/litebird/litebird_sim/pull/237)

- Remove bandpass-related warnings [236](https://github.com/litebird/litebird_sim/pull/236)

- Add TOD interpolation [233](https://github.com/litebird/litebird_sim/pull/233)

- Improve the documentation [231](https://github.com/litebird/litebird_sim/pull/231)

- Mbs supports generic bandpasses and can generate solar dipole [227](https://github.com/litebird/litebird_sim/pull/227)

- Improve the support for multiple TODs in the same `Observation` [225](https://github.com/litebird/litebird_sim/pull/225)

- Some memory optimization in pointing production [222](https://github.com/litebird/litebird_sim/pull/222), coordinate rotation and noise [#223](https://github.com/litebird/litebird_sim/pull/223)

- Implement new methods in the `Simulation` class: `fill_tods`, `compute_pos_and_vel`, `add_dipole` and `add_noise` [221](https://github.com/litebird/litebird_sim/pull/221)

- **Breaking change**: add multiple TOD support to `describe_mpi_distribution` and make the field `MpiObservationDescr.tod_dtype` a list of strings [220](https://github.com/litebird/litebird_sim/pull/220)

- Add links to the manual in the example notebook [219](https://github.com/litebird/litebird_sim/pull/219)

- Implement new methods in the `Simulation` class: `set_scanning_strategy`, `set_instrument`, `set_hwp`, and deprecate `generate_spin2ecl_quaternions` [217](https://github.com/litebird/litebird_sim/pull/217)

- Add `gzip_compression` keyword to `write_observations` [214](https://github.com/litebird/litebird_sim/pull/214)

- Run more comprehensive tests on different TOD components [212](https://github.com/litebird/litebird_sim/pull/212)

- Add a link to the IMO webpage SSDC for each entity/quantity/data file included in simulation reports [211](https://github.com/litebird/litebird_sim/pull/211)

- Fix issue 209 [210](https://github.com/litebird/litebird_sim/pull/210)

- Add flag for coordinate system choice of madam output maps [208](https://github.com/litebird/litebird_sim/pull/208)

- Improve support for multiple TODs [205](https://github.com/litebird/litebird_sim/pull/205)

- **Breaking change** Interface of `get_pointings` modified, new function `get_pointings_for_observation` simplifies the pointing generation for a list of observations [198](https://github.com/litebird/litebird_sim/pull/198)

- Ensure chronological order for Madam FITS files and make sure that exporting them to Madam works with MPI [204](https://github.com/litebird/litebird_sim/pull/204)

- Properly install Madam template files [202](https://github.com/litebird/litebird_sim/pull/202)

- Mark installation errors for rich traceback in CI builds as non fatal [199](https://github.com/litebird/litebird_sim/pull/199)

- Fix bug in `make_bin_map` [196](https://github.com/litebird/litebird_sim/pull/196)