Add functional tests for add multiple subnets feature
This change adds negative and positive functional tests
for the new feature add multiple subnets per az. Older
functional tests impacted by the feature are fixed. Finally,
the new flags `run_share_server_multiple_subnets_tests` and
`run_network_allocation_update_tests` are added and configured
in the community jobs for Dummy DHSS=True and Container Driver.
Partially-Implements: blueprint multiple-share-network-subnets
Change-Id: I99547e1873646fb1494a454f67b14c7293342beb
14 files changed