Add every pyfile under src/mcedit2 and src/mceditlib to the pyi build.
Add every pyfile under src/mcedit2 and src/mceditlib to the pyi build.

This brings in synth.l_system even though it isn't imported, and brings in anything else that's only provided for plugins and isn't found by modulefinder.

Rubisk/mcedit2,vorburger/mcedit2,vorburger/mcedit2,Rubisk/mcedit2