- Added the SE3_HandTracking input device which allows for XR teleop via
the SE3 interface.
- Updated the teleop_se3_agent to support hand tracking via the
`--teleop_device handtracking` flag
- Created a new .kit file `isaaclab.python.xr.openxr.kit` for supporting
teleop experiances

- New feature (non-breaking change which adds functionality)

- [x] I have run the [`pre-commit` checks](https://pre-commit.com/) with
`./isaaclab.sh --format`
- [x] 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
- [x] I have added my name to the `CONTRIBUTORS.md` or my name already
exists there

---------
Signed-off-by: peterd-NV <peterd@nvidia.com>
Co-authored-by: peterd-NV <peterd@nvidia.com>
Co-authored-by: CY Chen <cyc@nvidia.com>
Co-authored-by: oahmednv <oahmed@Nvidia.com>
Co-authored-by: Toni-SM <aserranomuno@nvidia.com>