CLOUDSTACK-5732 [UI] Search is not working in Affinity Groups panel

- Added keyword support

Conflicts:

	api/src/org/apache/cloudstack/api/command/user/affinitygroup/ListAffinityGroupsCmd.java
	api/src/org/apache/cloudstack/query/QueryService.java
	server/src/com/cloud/api/query/QueryManagerImpl.java