# Description

The experience files that we host in Orbit rely upon an expression
`${exe-path}`, specifically to resolve the location of the `VERSION`.
From our `orbit.python.headless.kit`:
```
app.versionFile = "${exe-path}/../VERSION"
app.folder = "${exe-path}/../"
```
This resolves to the full path of the calling exe, which is the `kit`
application in isaac-sim.

Currently this is broken in the container because we set
`ISAACSIM_PATH=/isaac-sim`, which is broken during the path operations
done on it. This PR fixes that by making
`ISAACSIM_PATH=/workspace/orbit/_isaac_sim` as well as mapping other
aliases (`python`, `python3`) through this path.

I have also added `not self._livestream` as a precondition of enabling
the `orbit.python.headless.kit` experience file, because otherwise we do
not render to livestream.

I also added fixes for all the newly failing tests, except for
`test_urdf_converter.py`. I will add a fix for that to this branch as
soon as I have one.

UPDATE:
It appears that `test_urdf_converter.py` was broken at least as far back
as commit `a30d764d`, which precedes the experience file commit. I will
therefore merge this without fixing that test.

Fixes [#339](https://github.com/NVIDIA-Omniverse/orbit/issues/339),
[#338](https://github.com/NVIDIA-Omniverse/orbit/issues/338)

## Type of change

- Bug fix (non-breaking change which fixes an issue)

## Checklist

- [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
- [ ] I have added tests that prove my fix is effective or that my
feature works
- [x] I have run all the tests with `./orbit.sh --test` and they pass
(except `test_urdf_converter.py`)
- [ ] 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: Hunter Hansen <50837800+hhansen-bdai@users.noreply.github.com>
Co-authored-by: Mayank Mittal <12863862+Mayankm96@users.noreply.github.com>