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/tests/integration/targets/role_definition/tasks/main.yml

@@ -0,0 +1,30 @@
+---
+- name: Create Role Definition
+  role_definition:
+    name: test_view_jt
+    permissions:
+      - awx.view_jobtemplate
+      - awx.execute_jobtemplate
+    content_type: awx.jobtemplate
+    description: role definition to launch job
+    state: present
+  register: result
+
+- assert:
+    that:
+      - result is changed
+
+- name: Delete Role Definition
+  role_definition:
+    name: test_view_jt
+    permissions:
+      - awx.view_jobtemplate
+      - awx.execute_jobtemplate
+    content_type: awx.jobtemplate
+    description: role definition to launch job
+    state: absent
+  register: result
+
+- assert:
+    that:
+      - result is changed