Feature request: Support typescript language service as a plugin

[binary64]

I noticed a big problem is Eslint only scanning a single file at a time. If you changed to become a TS server plugin instead then maybe you would have access to the whole project in order to determine if what yyou are importing is pure or not.

Great work, I am excited to see this plugin have a "low noise" configuration in the future.

[lukastaegert]

Thanks for the feedback! Unfortunately I have little time to work on this project at the moment, so external contributions are very welcome!