Have an output file for every class with the name of the class instea…

[jwasys]

…d of a init.py. Now we can parse a tree of .proto files with multiple .proto files in each sub dir without overwriting the init.py with every invocation of the compiler

Summary

Checklist

• [ ] If code changes were made then they have been tested.
  • [ ] I have updated the documentation to reflect the changes.
• [ ] This PR fixes an issue.
• [ ] This PR adds something new (e.g. new method or parameters).
  • [ ] This change has an associated test.
• [ ] This PR is a breaking change (e.g. methods or parameters removed/renamed)
• [ ] This PR is not a code change (e.g. documentation, README, ...)

[jwasys]

This should be configurable of coarse but for now it servers my purpose.