Change-Id: Ie3ca5526e2af30db06631e7c215fe2db13c92f2f

The 5.0.3 release of ansible-lint makes the linters job fail, due to the
addition of an unnamed-task rule. We have quite a large number of
unnamed tasks, typically include_tasks or include_role. We may want to
address this at some point, but not right now.

Change-Id: I4ee706fe2463d62e4e16412117d4373748ea43e3

Change-Id: Ic58a27e517004768433a1e793d4d8e90e2c3383a

Change-Id: I3a31c74608b48919c1563bac88313a8c4219dedc
Co-Authored-By: Radosław Piliszek <radoslaw.piliszek@gmail.com>

* Reworked tox pep8 into linters job, that runs:
  - pep8
  - bandit
  - bashate
  - doc8
  - yamllint
  - ansible-lint (validate-all-files.py + ansible-lint)

* Skip E701 - missing galaxy_info in meta and E602 see [1].
* Skip E301 and E503 - followup later in a separate change
* Added ansible-role-jobs to zuul.d/project.yaml which will run
  openstack-tox-linters job in check queue
* Fixed remaining style issue
* Made tox and docs reference the new env for linters
* Dropped pype environment (not supported)

[1]: https://github.com/ansible/ansible-lint/issues/457

Change-Id: I494b4b151804aac8173120e6c6e42bc2fdb00234