Database enhancement

[miazocool]

• [ ] #9
• [ ] #11 Create new description col in role table
• [ ] #12 Create user_id foreign key tp user table all 3 test foreign key reference for user_id
• [ ] #13 SQL : Insert perm into client_side_perm Rename client_side_permission to client_side_perm Result (view, create, delete ) Test (take, view (disable input option), Profile (view, edit) SearchResult (view) Rename client_side_permission to client_side_perm
• [ ] #14 Create new col question.type