Ssbh-data-py

Changes:
- Added support for numshexb files with the `ssbh_data_py.meshex_data` submodule.
- Improved type hints.
- Changed classes to support specifying all fields at construction with clear defaults for optional fields.
- Added support for installing from PyPi for Apple M1 processors on Python 3.9.

Breaking Changes:
ssbh_data_py.mesh_data
- Removed `ssbh_data_py.mesh_data.read_mesh_numpy`. Use `read_mesh(..., use_numpy=True)` instead.

Changes:
- Added `from_str` and `from_value` static methods to enum types.
- Improved type hints.
- Added `ssbh_data_py.mesh_data.read_mesh_numpy`. This is an experimental API and may change in future releases.

Changes:
- Added support for numatb files with the `ssbh_data_py.matl_data` submodule.
- Improved the printed output of ssbh_data_py classes when calling `repr()`, `str()`, or `print()`.
- Removed support for Python 3.6.

Changes:
- Added the `sort_bias`, `disable_depth_write`, and `disable_depth_test` fields to to `MeshObjectData`. These default to `0`, `False`, and `False`.
- Types will now display as being a member of their respective module rather than a member of "builtins" when debugging objects.
- Added support for adjb files with the `ssbh_data_py.adj_data` submodule.
- Added scale options to `TrackData`. This is accessible as `track.scale_options.inherit_scale` and
`track.scale_options.compensate_scale`.

Breaking Changes:
ssbh_data_py.anim_data
- Moved the compensate_scale field to `TrackData`. This now applies to all frames in the track.

Changes:
- Fields and function parameters that used to only accept lists of floats or ints now accept sequences such as tuples or numpy arrays. For example, `bone.transform = numpy.zeros((4,4))`, `mesh_object_data.vertex_indices = numpy.arange(12)`, and `attribute_data.data = [(1,0,0), (0,1,0)]` now work as expected without requiring any conversions.
- Improved the printed representation of `ssbh_data_py.anim_data.Transform` and `ssbh_data_py.anim_data.UvTransform`
- Added `ssbh_data_py.mesh_data.calculate_smooth_normals` and `ssbh_data_py.mesh_data.calculate_tangents_vec4` functions from ssbh_data
- Fixed an issue where the 4th value of `Transform.rotation` would sometimes be set to `NaN`.
- Improved the readability of Python exceptions triggered by panics in Rust code.

Breaking Changes:
ssbh_data_py.anim_data
- Renamed all UvTransform fields
- Changed the expected type from float to integer for Transform.compensate_scale
- Added the final_frame_index field to AnimData. This should be set to `frame_count - 1` or `0` for empty animations.

Changes:
- Added type stub files (.pyi). This enables type hints and autocompletion in supported IDEs.