added sanity tag
Merge pull request #14 from vedujoshi/test_parallelism

Add test-infra for router add/delete/assoc/disassoc basic operations, add a basic router testcase, autopep8 changes
Merge pull request #15 from ruchi123/test_parallelism

added sanity tag
Move subnet,port,router test files together, Add missing router-testcase from earlier commit

Change-Id: Iabf5cb4b35b04f7315ca82f9f0aee8d82a56a548