This change moves the controller ImageFormCtrl and
hzNamespaceResourceTypeFormController from horizon (the framework)
to openstack_dashboard (the application) where they belong.
Co-Authored-By: Tyr Johanson <tyr@hp.com>
Change-Id: I2309f0867c2f657a6065003475dcb10448f907bc
Partial-Bug: #1458697