AWX Collections for DAB RBAC

Adds new modules for CRUD operations on the
following endpoints:

- api/v2/role_definitions
- api/v2/role_user_assignments
- api/v2/role_team_assignments

Note: assignment is Create or Delete only

Additional changes:
- Currently DAB endpoints do not have "type"
field on the resource list items. So this modifies
the create_or_update_if_needed to allow manually
specifying item type.

Signed-off-by: Seth Foster <fosterbseth@gmail.com>

awx_collection/README.md

@@ -68,6 +68,7 @@ Notable releases of the `awx.awx` collection:
  - 7.0.0 is intended to be identical to the content prior to the migration, aside from changes necessary to function as a collection.
  - 11.0.0 has no non-deprecated modules that depend on the deprecated `tower-cli` [PyPI](https://pypi.org/project/ansible-tower-cli/).
  - 19.2.1 large renaming purged "tower" names (like options and module names), adding redirects for old names
+ - 21.11.0 "tower" modules deprecated and symlinks removed.
  - X.X.X added support of named URLs to all modules. Anywhere that previously accepted name or id can also support named URLs
  - 0.0.1-devel is the version you should see if installing from source, which is intended for development and expected to be unstable.
 
@@ -112,7 +113,7 @@ Ansible source, set up a dedicated virtual environment:
 
 ```
 mkvirtualenv my_new_venv
-# may need to replace psycopg2 with psycopg2-binary in requirements/requirements.txt
+# may need to replace psycopg3 with psycopg3-binary in requirements/requirements.txt
 pip install -r requirements/requirements.txt -r requirements/requirements_dev.txt -r requirements/requirements_git.txt
 make clean-api
 pip install -e <path to your Ansible>