Filtering the VCenter projects,networks,instances fromt the API server and displaying in corresponding pages of network monitoring,in case if the orchestration model is VCenter

Change-Id: I3c2c751393de16b87a94e2c5e20979f757c15b3a
Merge pull request #23 from vishnuvv/VCenter

Filtering the VCenter projects,networks,instances fromt the API server a...