Feature 10910: Migration of Openstack based VM instances

	*Added NG-UI support for Vm Migration
	*In NS Instances page. Click "Vm Migration" in the actions menu.
        *Then a new pop-up page will be opened.
        *In the popup there will be fields containing membervnfIndex, vduid, count index and migrate to host
        *When the fields are selected then Click Apply button.
        *The pop-up window is closed and the page is directed to "History of operations" page

Change-Id: I5c218ebcdc67d1244e60e7d4653d6d76c5189684
Signed-off-by: SANDHYA.JS <sandhya.j@tataelxsi.co.in>