[proposal] add lerna or any monorepos handler

Hi guys! I love your project and would like to use it to build my SDK.

My SDK is a monorepo with many packages written in typescript and I think it would be really great if you can add lerna or something similar to manage the monorepo libraries.

I ask you because I have no idea how to manage a monorepo system with your boilerplate. Even just a guide would be very useful :)

Thanks a lot for any replies and happy coding!