Add rollup-plugin-incremental

[Amareis]

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/mprt-org/rollup-plugin-incremental

Please Describe Your Addition

A Rollup plugin which makes your (development) builds much faster, by recompiling only changed modules.

[Amareis]

Ok, second check-list

• [ ] 30 days is gone
• [ ] Add tests

[shellscape]