- Bandit tests are executed in kolla directory,
  in kolla ansible this directory is kolla_ansible.

- Error is silently ignored:
  Files skipped (1):
  	kolla (No such file or directory)

- Also, in ansible/ there is python code in more places
  than only ansible/library, remove library to pass test
  over the whole ansible directory

- Debug tests fails due cannot import tests.
  ImportError: Start directory is not importable: './kolla-ansible/tests'

Change-Id: I0716034c382209b385105bb3a6e0bb7334076e45