feat(presets): Add @rsjf/ monorepo

[hawkrives]

Changes

I added a monorepo, @rjsf/*core*, for the react-json-schema-form packages.

Context

I was going to put this in locally, but I realized that I should just contribute the new monorepo back to core!

Documentation (please check one with an [x])

• I have updated the documentation, or
• No documentation update is required

I believe that this updates the documentation automatically.

How I've tested my work (please select one)

I have verified these changes via:

• Code inspection only, or
• Newly added/modified unit tests, or
• No unit tests but ran on a real repository, or
• Both unit tests + ran on a real repository

[viceice]

please validate that those packages do have correctly published the repo url. probably test it on a repo with a package rule. otherwise LGTM

[hawkrives]

Closing as #22248 was merged. Sorry that I didn't manage to come back to this!