Add new BSD license rule

[NucleonGodX]

Fixes #4018

Tasks

• Reviewed contribution guidelines
• PR is descriptively titled 📑 and links the original issue above 🔗
• Tests pass -- look for a green checkbox ✔️ a few minutes after opening your PR
  Run tests locally to check for errors.
• Commits are in uniquely-named feature branch and has no merge conflicts 📁

Signed-off-by: NucleonGodX manitsingh018@gmail.com

[pombredanne]

Thanks. Looking good!
Do you mind to amend the commit message?
We like to use imperative style.
Rather than "new bsd variant added as a rule", what about:

"Add BSD license detection rule #4018"

We have some doc on how to write good commit messages: See https://aboutcode.readthedocs.io/en/latest/contributing/writing_good_commit_messages.html

[pombredanne]

Please also rename your PR using the imperative style, and apply the same approach to your other PRs.

[NucleonGodX]

Thanks for the suggestions @pombredanne , I've implemented them here and in other PRs.

[pombredanne]

Also the rule needs to be renamed to something that is unique to avoid conflicts.

[NucleonGodX]

Also the rule needs to be renamed to something that is unique to avoid conflicts.

Done!