[RAFT] Publish Pypi package with raft, eval and format scripts

[cedricvidal]

Is the feature request related to a problem?
Users are currently required to checkout the repository to use RAFT. While this is definitely possible, it would be much easier for users to just be able to pip install and use the RAFT scripts from the package instead.

Describe the solution you'd like
When I run pip install raft, I want to be able to run the following CLI programs:

• raft
• eval
• format

Additional context
In order to isolate those programs from other unrelated packages, it might be interesting to consider prefixing eval and format with something like raft-eval and raft-format.

I used raft as a package name example above but it is already taken so the team would have to find an available package name.

Out of scope
This doesn't mean to create a RAFT Python SDK, a library that users can include in their Python programs, only the ability to run the CLI programs.

Exposing a RAFT Python SDK would be a different ticket.