Add rollup-license-plugin

[codepunkt]

Awesome Contribution Checklist:

• [X] I have read, and re-read the Contributing Guidelines
• [X] I have searched to ensure the suggested item doesn't exist on this list
• [X] This PR contains only one item

Please Provide a Link A Repository for Your Addition

https://github.com/codepunkt/rollup-license-plugin

Please Describe Your Addition

I'm the maintainer of webpack-license-plugin. It is used to build one or more bill of material files containing a list of all of the dependencies used in the build output for license compliance purposes - including their version, SPDX license identifier, license text and further information.

At my employer we've switched the bundling from webpack to rollup/vite for several of our products, so I've implemented rollup-license-plugin to offer the same API for rollup builds. I have read the Contribution Guidelines and understand that I might be violating the first rule. However, as it's the same API as webpack-license-plugin and I've been maintaining that for years, I think it should be fine.

[shellscape]

You checked the box acknowledging you'd read the guidelines but missed the very first guideline I guess.

(Ah, you saw it but disregarded. Guidelines are guidelines and we prefer a level playing field for all contributors regardless)