Add unit tests for configurable network resources

This commit adds additional tenant isolation unit tests that cover
configuring which network resources are required for an isolated
tenant. In addition to testing network resource creation for the admin
and alt tenants.

Partially implements bp unit-tests

Change-Id: I8cbe836f9a2357f53bbbaeefd2b4ec74553089fb
Merge "Add unit tests for configurable network resources"