Post deployment, execute neutron-sanity-check for all neutron services

[Ihar Hrachyshka]

Neutron project ships a tool called neutron-sanity-check that should validate deployment configuration for all neutron services. The tool is triggered by clapper [1] but apparently is not in tripleo-validations.

Please add support for the tool in tripleo-validations.

Note: clapper implementation of the check is not ideal. The tool is supposed to be executed per neutron service running on a node, with corresponding --config-file/--config-dir options that would replicate CLI arguments used by a distribution in question.

[1] https://github.com/rthallisey/clapper/blob/master/ansible-tests/validations/neutron-sanity-check.yaml

[ofer blaut (oblaut)]

We should have tripleo-validation running on different deployments :
- Controller
- Networker
- Compute

[Emilien Macchi (emilienm)]

This is an automated cleanup. This bug report has been closed because it
is older than 18 months and there is no open code change to fix this.
After this time it is unlikely that the circumstances which lead to
the observed issue can be reproduced.

If you can reproduce the bug, please:
* reopen the bug report (set to status "New")
* AND add the detailed steps to reproduce the issue (if applicable)
* AND leave a comment "CONFIRMED FOR: <RELEASE_NAME>"
  Only still supported release names are valid (FUTURE, PIKE, QUEENS, ROCKY, STEIN).
  Valid example: CONFIRMED FOR: FUTURE