Adding a fake zkocc connection in python, useful for tests.
Adding a fake zkocc connection in python, useful for tests.

nso95/vitess,nso95/vitess,nso95/vitess,fanngyuan/vitess,nso95/vitess,fanngyuan/vitess,nso95/vitess,fanngyuan/vitess,fanngyuan/vitess,fanngyuan/vitess