v1.1.0 RFdiffusion Python Module

Thanks to Sam DeLuca, RFdiffusion has been refactored into a python module.
This makes it easier to run the inference script from any working directory, and makes it easier for a user to import RFdiffusion into their own python scripts and use it as a library.
The setup is slightly changed, and is detailed in the README.
The run_inference.py script is now within the scripts/ directory, so submission scripts will need to point to this new location.

v1.0.0 Initial RFdiffusion release

Initial release of RFdiffusion