This MR adds the `RayCasterCamera` as a ray-cast-based camera for
"distance_to_camera", "distance_to_image_plane" and "normals"
annotations. It has the same interface and functionalities as the USD
Camera wrapper, while it is, on average, 30% faster.

Fixes #131

- Bug fix (non-breaking change which fixes an issue)
- New feature (non-breaking change which adds functionality)
- This change requires a documentation update

- [x] I have run the [`pre-commit` checks](https://pre-commit.com/) with
`./orbit.sh --format`
- [ ] I have made corresponding changes to the documentation
- [x] My changes generate no new warnings
- [x] I have added tests that prove my fix is effective or that my
feature works
- [x] I have updated the changelog and the corresponding version in the
extension's `config/extension.toml` file

---------
Signed-off-by: Pascal Roth <57946385+pascal-roth@users.noreply.github.com>
Co-authored-by: Mayank Mittal <mittalma@leggedrobotics.com>