move ide_gen.py and friends idea_gen.py and eclipse_gen.py to new options

Move ide_gen.py and friends idea_gen.py and eclipse_gen.py to new options

Testing Done:
CI is running.

Bugs closed: 736

Reviewed at https://rbcommons.com/s/twitter/r/1230/
Sync of https://github.com/pantsbuild/pants/commit/8c0dad8243fc3d6daffcfae1842a41263480bf7a