New publication_fairshare script
Created by: stavamichal
- using not only users but also groups (perun resources)
- using new attribute fairshareGroupName
- users can be in groups or not
- duplicits of same users or groups are not allowed, die if happens
- UID of users and groups must be unique number, but can be dynamic
- users under groups have always weight 1
- group has weight of all members * 1 + all weights of unique publications