Move InternalGroup to the entities package

This increases visibility for this class which is needed for a follow-up
change.

Change-Id: Ia177bc8cfd6eee347288fa54447a3160ed1617c5
1 file changed
tree: fd38ca168a1c1bfd912301b6c8d313a6d17afd24
  1. java/
  2. javatests/