Core: FacilitiesManager.createFacility edited, so as a facility admin is able to call the method. After creating the facility, the creator become manager of the facility.
Core: FacilityManager: Created methods for copying Managers, Admins and
Attributes from one facility to another. When there is already Manager,
Admin or Attribute in the destination facility, it is overwritten instead of throwing exception.
Tests added for all the three methods.