Convert the SEED-Bench folder into a `package like` structure

[idan-tankel]

That folder would than contain modules / scripts for running the preprocessing, rephrasing, saving, evaluation, and any further processing regarding SEED-Benchmarks.

Create an external main file, powered by configuration management module (s.a hydra, omegaConf for instance) to run the scripts in the SEED-Bench package.

Wrap SEED-Bench with a proper setup.py file / any package required files

Create docs