Note: project being refactored into monorepo

`compat-db` has become a pretty large project. I found it useful to split the project into smaller projects. I have created a new project called [`ast-node-type-verifier`](https://github.com/amilajack/ast-node-type-verifier). This new project takes the responsibility of inferring metadata about API's (specifically the ast node types of API's). The responsibility of `compat-db` will shift to focus solely on testing the compatibility of certain API's.