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- Rendering Mode Presets
-- adds a cli arg --rendering_mode, can be set to
quality/balanced/performance
-- selects the preset rendering settings stored in .kit files in
apps/rendering_modes
-- the renderings settings are set after the app is launched
- RenderCfg update
-- unsets the default settings
-- adds a general_parameter field to support all .kit rendering settings
in their native names
-- RenderCfg overwrites settings which are set with a preset
- Unit test
-- just checks preset + override settings behave correctly for each
preset
- Example script
-- very simple script that launches a hospital scene with a given
rendering mode and override settings

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

Screenshots from rendering preset script

performance:

![performance_v2](https://github.com/user-attachments/assets/ad1cf425-3a13-48be-ad00-33089ab304a3)

balanced:

![balanced_updated](https://github.com/user-attachments/assets/4a0852d0-112f-43d7-aa45-2a6c417457a8)

quality:

![quality](https://github.com/user-attachments/assets/10f54027-a125-4e0b-ad6c-5a087a1d4c78)

- [x] I have run the [`pre-commit` checks](https://pre-commit.com/) with
`./isaaclab.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
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- [x] I have updated the changelog and the corresponding version in the
extension's `config/extension.toml` file
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---------
Signed-off-by: Kelly Guo <kellyg@nvidia.com>
Co-authored-by: Kelly Guo <kellyguo123@hotmail.com>
Co-authored-by: Kelly Guo <kellyg@nvidia.com>