Add share network id field in share server info

In share server responce in manila api only information about
share network name is exist. But name can be different. That's
why separate field with share network id is added.

Change-Id: Iac429a2d38f9565239d08d57a8f6cece696124a1
Closes-Bug: #1378687
Merge "Add share network id field in share server info"