Topopyscale

This is a lone overdue release as new features and typos/bus have been corrected. This new release now supports the new CDS API for ERA5 data download.

**WARNING**: There may be some compatibility issues with workflows based on previous release.

- New tool to fetch Copernicus DEM [19abe84] with paralleisation [1d834bd]
- improvement of path directory code [72dcd3e]
- debug of masking [3713f83]
- function to export to FSM2oshd [1ed7b6d]
- correction of a bug when elevation was lower than the lower pressure level [e133c6e]
- adding compatibility with IFS data [134f7ce] and script to feth IFS data [69c9845]
- implementation of an export function to FSM2 model [749a0e3]
- improvements in the routine for forecast [cd75c5a]
- added rioxarray to requirements [de8ae0c]
- added export function for SURFEX model [f5ad251]
- added explicit `get_era5()` function in workflow [7b35bcd]
- fixed typos and bug in `topo_sim.py` [327fe4f] *et al.*
- added dask chuncking to stop memory leaks [fd2adc4]
- output format of the ERA5 data is now dynamic and not hard coded to netcdf [3cb0b49]. now support for
- update of new variable keywords of CDS-beta [ef13238]
- replaced `raise warning ...` by simple prints as it led to crash [f8da401]
- new feature to download ERA5 from zarr repositories [3eb160d]
- added possibilities to downscale at other timestep than 1h only [d77d988]

This release includes a working version for exporting to FSM2ohd, and a number of other correction in the code. These are minor typos that led to inconsistencies.

New release bringing latest development of new features into TopoPyScale:
- Support to export to FSM2oshd format 3fe1e1a7bded57e282a8b35c0960881e5c6417a8
- added support for masking out domain or split domain in independent regions 81298bfa8714172cf61cfbb33bdc4c456523009f
- added support for custom `outputs` directory 951451e3e59c3cd633460ea923dd980ec803e338
- rename files containign FSM simulation routines to `sim_fsm.py`
- added support for C-implementation of solar position in pvlib library 074710a2e586d3bceadb78def108edca4e000dce
- `point_id` can be anything from int, float to string 1a32a5d9a3003103928a243b89997613a53258b1

and a number of minor bug fixes

This new version of the package is justified by the release of the JOSS publication following the [review process](https://github.com/openjournals/joss-reviews/issues/5059). In the meantime a number of features have been added.

- support for SLURM server type
- *realtime* processing, downloading latest ERA5 data. For operational setup c0fb49fff0f106bb39601f77b6b5a120901c18f0
- git commit hash and package version added to netcdf file metadata. This ensure to know which version of TopoPyScale was used to create data.
- climate input can now be located outside of the project directory. This prevent to copy multiple times the same data. 77fd990500bfe6934ad6997d70acb106fd44b6d1
- Outputs directory can be named independently of default
- export FSM as netcdf
- streamlined the `environment.yml` file 5af8c8dde5c0d8ca08c9c03de7dafa85a4c543e2
- fix Dask indexing: 4b00cd60bffe6fff5fa16e8f16c95b822c5238a4
- option to give specifc name to cluster points and not depend on the default `point_id` 7695450864e3b9f978c6e22c7c5fda800941d011
- function to export griddedata 420f80a55110b31abd4edede7c69fb30e608375d
- update `xarray` functions that were deprecated 3662908f635a6c7565a6c9217934b98a09b78b1d
- possibility to run FSM in parallel mode 91c8528db69499f5041f9849f739b3253b7f1d25
- added snow routine for steep slope 4d31fd1a2f9c628bd2a208e3862e449ab5af847a

This release includes:
- upgrade to Python 3.9 and Xarray 2.3
- no more problem of memory byt using `open_mfdataset`
- new testing script with github action
- added units to default downscaled dataset
- n_core option is less restrictive now.
- solved a number of path issues
- a number of improvements of the FSM simulation `topo_sim.py` routines
- corrected projection issues when interpolating the climate dataset
- `to_cryogrid()` now compatible with Cryogrid.jl
- added an `environment.yml` file for version controlled install of VE
- plotting function `map_variable()` has been generalized
- and a number of bugs have been caught along the way.

New release resolving a number of bugs:
- a crucial bug occurring when storing datasets during downscalng in `topo_scale.py`. More details in issues: https://github.com/ArcticSnow/TopoPyScale/issues/60 and commit https://github.com/ArcticSnow/TopoPyScale/commit/a33e79f77bd32fd6952c4a269024a31a9a584dae
- a bug resolved in `to_crocus()` https://github.com/ArcticSnow/TopoPyScale/commit/4e73489e85bc567d897752f6d8cc7db0eb6c3011
- a bug when computing level elevation from geopotential https://github.com/ArcticSnow/TopoPyScale/commit/6a4c68e9a0e2f9f1c66427924e75d8c126fbd963
- a bug in to_musa() https://github.com/ArcticSnow/TopoPyScale/commit/81e8978cb152a7b908e53a20eea90853b63aaa18