feat(license): improve license normalization

[pbaumard]

Description

• Normalize "+", "-only" and "-or-later" suffixes
• Many new mappings from oss-review-toolkit
• Space normalization, including newlines
• Normalize US / UK spelling for license / licence.
• Remove "THE " prefix
• Remove common suffixes: " LICENSE", " LICENSED", -"LICENSE" and "-LICENSED"
• Add MIT-0
• Add tests

Related issues

• Close #7189

Checklist

• [x] I've read the guidelines for contributing to this repository.
• [x] I've followed the conventions in the PR title.
• [x] I've added tests that prove my fix is effective or that my feature works.
• [ ] I've updated the documentation with the relevant information (if needed).
• [ ] I've added usage information (if the PR introduces new options)
• [ ] I've included a "before" and "after" example to the description (if the PR is a user interface change).

[CLAassistant]

All committers have signed the CLA.

[CLAassistant]

Thank you for your submission! We really appreciate it. Like many open source projects, we ask that you sign our Contributor License Agreement before we can accept your contribution.
_{You have signed the CLA already but the status is still pending? Let us recheck it.}