Set member expiration date and show and set expiration date for member's groups

Created by: xkureck

Right now we are only showing membership status and expiration date(for vo) in the members overview. (and tbh not in very nice way) Now we want to change member expiration date. Find out where would this feature would be positioned in our gui(so it make sense). Also now we want to show somewhere expiration date and status of member in his groups. With that we also want to change the member status in group. Find out where would this feature would be positioned in our gui. For that Vojta/Slavek advice would be nice I guess