Ganetiviz - Cytoscape JS libs updated to 2.0.2 (from 2.0.1)
Refs #13569
Ganetiviz - Added a instance list panel that lists primary instances of a selected node.
          - Clicking an instance on this panel highlights corresponding Failover edge.
          - Added click to open overlay-help feature, and updated help content.
Refs #13569
cluster-list.html template in Ganetiviz app updated to inherit from menu_base.html of GWM
Refs #13569
Made login necessary to use Ganetiviz or see a list of all cluster at /maps
(ie. Added LoginRequiredMixin to view classes in ganetiviz)
Refs #13569