This commit adds a new package repository containing every single cchat
types that the package provides. Its goal is to be the source of truth
for the cchat files to be generated from.
A huge advantage of this is having types in an easily representable
format. This means that other languages can easily parse the repository
and generate its own types that are similar to the original ones.
Having a repository also allows easier code generation. For example,
this commit will allow generating the "empty" package in the future,
which would contain empty implementations of cchat databases that would
return nil for asserter methods.
diamondburned