Have the python component include the egg-info.

Instead of having to repeatly get the egg-info
and do the repeated checks in base.py and yum.py
we should just have the component itself (if
applicable) provide its own egg-info instead of
having to repeatly fetch it.

Change-Id: Ic0a85f26224210af191c5bd86ffad5af30d7dabf
Merge "Have the python component include the egg-info."