Porting out parser into its own repo?

[0x19]

There are different solidity versions we need to deal with. Potentially, we could go with let's say instead of solgo.parser into its own repository where we have parser.NewManager() and from which, with generics, we can load different types of parsers for different solidity versions.

Additional idea is to unify the grammar file and basically have one grammar for the whole solidity from 0.4 to date. This one, to me sounds the best tbh, if possible (and most probably is - did not research yet).

If we go with parser repo, then this is a cascading nightmare due to AST parser. Basically we would need to extend it to know which version it's talking about.

Not sure if we want to go this path -> a bit of music while reading this https://www.youtube.com/watch?v=6CwIB6pQoPo