webadmin: hiding virt related fields in Gluster mode

The following ui fields will be hidden when the Application mode is Gluster only.
- CPU colum in Cluster main tab
- Data Center name in Cluster general tab
- Console tab in Host popup
- SPM Priority in Host general tab

Change-Id: I5352cf678161905d46281331168df4fb7b97b622
Signed-off-by: Kanagaraj M <kmayilsa@redhat.com>