Merge pull request #45 from vedujoshi/test_parallelism

Create flavor in svc_template_fixture in case it doesnt exist, Thanks Mu...
restructure service instance creation step to run with skip_verify, minimum verification needed as SI's need to come up to continue tests; on failure, run all verifications to get more info to debug
Merge pull request #46 from smusuvat/test_parallelism

restructure service instance creation step to run with skip_verify, mini...
Add CRUD tests for neutron network,port,subnet, router and its supporting code

Change-Id: I2e22e4f3625e0bdf2a9033749f00f83c22526d16