Moved StaffApi
Added StaffApi to views
Added StaffApi urls
Moved StudentApi
Added StudentApi to views
Added StudentApi urls
Moved StudentGroupApi
Added StudentGroupApi to views
Added StudnetGroupApi urls
Moved TreeMenu
Added TreeMenu views
Added TreeMenu urls
Fixed imports
Moved Treeresponder
Added Treeresponder views
Fixed import
Removed __init__
Updated urls