Migrate openstack modules as a collection

Migrate accordin to Ansible guidelines [1[]] and tool
migrate.py [2]
Also fixed ALL ansible-test sanity issues

Add pep8 and linter job with runs ansible-test sanity test.

[1] https://etherpad.openstack.org/p/openstack-ansible-modules
[2] https://github.com/ansible-community/collection_migration

Change-Id: Ib2b1c8f23aacfca95304132bfe5c4cdedbea0520

tests/unit/mock/vault_helper.py

@@ -0,0 +1,39 @@
+# Ansible is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# Ansible is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with Ansible.  If not, see <http://www.gnu.org/licenses/>.
+
+# Make coding more python3-ish
+from __future__ import (absolute_import, division, print_function)
+__metaclass__ = type
+
+from ansible.module_utils._text import to_bytes
+
+from ansible.parsing.vault import VaultSecret
+
+
+class TextVaultSecret(VaultSecret):
+    '''A secret piece of text. ie, a password. Tracks text encoding.
+
+    The text encoding of the text may not be the default text encoding so
+    we keep track of the encoding so we encode it to the same bytes.'''
+
+    def __init__(self, text, encoding=None, errors=None, _bytes=None):
+        super(TextVaultSecret, self).__init__()
+        self.text = text
+        self.encoding = encoding or 'utf-8'
+        self._bytes = _bytes
+        self.errors = errors or 'strict'
+
+    @property
+    def bytes(self):
+        '''The text encoded with encoding, unless we specifically set _bytes.'''
+        return self._bytes or to_bytes(self.text, encoding=self.encoding, errors=self.errors)