Rex-xai

Minor Change
Reformat pyproject.toml to allow installation of optional dependencies with pip by liz-is in https://github.com/ReX-XAI/ReX/pull/91

Features and fixes:
- support for 3D inputs/models 48
- support for context occlusions through custom scripts
- updated docs to include instructions to make custom scripts : [docs/scripts.md](https://github.com/ReX-XAI/ReX/pull/docs/scripts.md)

Other changes:
- added relevant tests for the change made to include 3D functionality

**Features and fixes:**

- support for identifying [multiple explanations](https://github.com/ReX-XAI/ReX/pull/38)
- support for [contrastive (necessary and sufficient) explanations](https://github.com/ReX-XAI/ReX/pull/72)
- support for [spectral input data](https://github.com/ReX-XAI/ReX/pull/30)
- internal functions were [refactored to facilitate interactive use](https://github.com/ReX-XAI/ReX/pull/15) of ReX
- support for using a [betabinomial distribution](https://github.com/ReX-XAI/ReX/pull/22) to generate mutants
- support for [RGBA images](https://github.com/ReX-XAI/ReX/pull/53)
- [Python 3.13 support](https://github.com/ReX-XAI/ReX/pull/47)
- [simplification of code that reads config values](https://github.com/ReX-XAI/ReX/pull/46) from a `rex.toml`, and introduction of [validation](https://github.com/ReX-XAI/ReX/pull/52) for these values

**Documentation:**

- documentation for ReX is now available on [ReadTheDocs](https://rex-xai.readthedocs.io/en/latest/)
- including for [interactive use](https://github.com/ReX-XAI/ReX/pull/37)

**Other changes:**

- reached >60% test coverage with unit tests and snapshot tests
- added CI workflows to run tests and linting on PRs
- added workflow to automate publishing to PyPI on a Github Release