Description of problem:
The host page has possibility to filter hosts based on multiple keys. One of them is user.* which is filtering the hosts based on their owner, however, the owner can't be only user, but also usergroup. Therefore the usergroup filter should be implemented as well.

Version-Release number of selected component (if applicable):
6.2.x

How reproducible:
On satellite, try to use search and find hosts based on their respective usergroup.

Actual results:
Usergroup filtering is missing.

Expected results:
Usergroup filter will be added.