Removed obsolete value supplement template

supplement template is not in use anymore, same for wb-value-empty css class

Change-Id: Ia89510321bd12ddc5f1f9c2d5361e994288b3cb4
Implemented sitelinkgrouplistview

Change-Id: I43a7897e999bd5239eaaec29bba8393728586426
Merge "Removed obsolete value supplement template"
Merge "Implemented sitelinkgrouplistview"