Advanced Cluster Management Enhancements

	- Chnaged cluster page design from switch to single page
	- Added bootstrap option in creation and registration
	- Added horizontal scaling, vertical scaling and upgrade in
	  cluster action
	- In cluster page, for list combined two apis to show list done
	  temporary fix from UI

Change-Id: Ie4d30f5db28025ec92398cc60fc50ab7030f8f9b
Signed-off-by: SANDHYA.JS <sandhya.j@tataelxsi.co.in>