Fast-oad

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- Modified:
- Mission module:
- Automated addition of taxi-out and takeoff phases is now deprecated. (https://github.com/fast-aircraft-design/FAST-OAD/pull/574)
- `load_factor` parameter has been added to mission segments with weight-driven lift (https://github.com/fast-aircraft-design/FAST-OAD/pull/579).
- transition segment can now handle a payload change (https://github.com/fast-aircraft-design/FAST-OAD/pull/580).
- Fixed:
- Minor fixes in mission module (https://github.com/fast-aircraft-design/FAST-OAD/pull/579):
- Lift value was generally not computed (knowing CL can be enough), though the column is always in csv files.
- In ClimbAndCruise segment, the target of inner climb segment could be set without guarantee the climb segment was not None.

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- Modified:
- Python 3.12 is now supported. (https://github.com/fast-aircraft-design/FAST-OAD/pull/555)
- Python 3.8, that reached end of life, is no longer supported. (https://github.com/fast-aircraft-design/FAST-OAD/pull/555)

=============
- Added:
- Custom imports handling in configuration file. (https://github.com/fast-aircraft-design/FAST-OAD/pull/559)
- Initializing output values from input file. (https://github.com/fast-aircraft-design/FAST-OAD/pull/551)
- Layout of mission viewer can now be controlled by user. (https://github.com/fast-aircraft-design/FAST-OAD/pull/549 by Mokyoslurp)
- Added sunburst mass breakdown for missions other than the sizing one. (https://github.com/fast-aircraft-design/FAST-OAD/pull/547)
- In mission computation, added CL as possible target for altitude change. (https://github.com/fast-aircraft-design/FAST-OAD/pull/563)
- New method get_val() in Variable class to get values in different units. (https://github.com/fast-aircraft-design/FAST-OAD/pull/570)
- Plots now handle horizontal_tail:center new naming. (https://github.com/fast-aircraft-design/FAST-OAD/pull/546)

- Fixed:
- Better NaN detection in inputs. (https://github.com/fast-aircraft-design/FAST-OAD/pull/532)
- Deactivation of dataset is now effective for both plots in mass breakdown bar plot. (https://github.com/fast-aircraft-design/FAST-OAD/pull/545 by aeomath)
- Payload range module can now handle mission files with several missions. (https://github.com/fast-aircraft-design/FAST-OAD/pull/562)

=============
- Fixed:
- Fixed compatibility of ValidityDomainChecker class with OpenMDAO 3.34. (https://github.com/fast-aircraft-design/FAST-OAD/pull/553)

=============
- Added:
- Compatibility with Python 3.11. (https://github.com/fast-aircraft-design/FAST-OAD/pull/538)
- Aircraft plot: minor change in naming of geometry variable for horizontal tail (old name still accepted). (https://github.com/fast-aircraft-design/FAST-OAD/pull/546)

- Fixed:
- Fixed validity checker for array variables. (https://github.com/fast-aircraft-design/FAST-OAD/pull/537)
- In mass breakdown bar plot, legend was controlling visibility only for the right-handed plot. (https://github.com/fast-aircraft-design/FAST-OAD/pull/545 by aeomath)

=============
- Added:
- A `fastoad.testing.run_system()` function is now available in public API for component unit test. (https://github.com/fast-aircraft-design/FAST-OAD/pull/533)

- Modified:
- `pathlib.Path` objects are now accepted whenever a file or folder path is expected. (https://github.com/fast-aircraft-design/FAST-OAD/pull/521, https://github.com/fast-aircraft-design/FAST-OAD/pull/522, https://github.com/fast-aircraft-design/FAST-OAD/pull/525)
- Enhanced and documented the `CycleGroup` class. (https://github.com/fast-aircraft-design/FAST-OAD/pull/528)

- Fixed:
- Climb was not stopping when start was already over the asked optimal altitude/flight level. (https://github.com/fast-aircraft-design/FAST-OAD/pull/526)
- Fixed links to OpenMDAO doc. (https://github.com/fast-aircraft-design/FAST-OAD/pull/527)
- Fixed behavior when input variables could be added using `model_options`. (https://github.com/fast-aircraft-design/FAST-OAD/pull/530)
- Fixed the variables displayed by default in MissionViewer. (https://github.com/fast-aircraft-design/FAST-OAD/pull/535)