Add members to project

• Be able to add/remove members to project from interface.

  When adding a member, should add permissions accordingly: add the member to the group that match his defined role. When removing a member, the permissions should be removed as well : remove the member from projectGroup.

• For the ui:

  • a page members
  • Form to add members and its role
    • needs to have the list of users
    • list of roles
  • A table that list the current members and their role