Ansible Tower job_launch module (#22148)

* Ansible Tower job_launch module

* Added RETURN documentation and fixed import locations

* remove superfluos required attributes, make tags a list, and fix some typos

* only join tags if they are actually a list

* use isinstance instead of type, cleanup imports

lib/ansible/module_utils/ansible_tower.py

@@ -75,3 +75,13 @@ def tower_check_mode(module):
             module.exit_json(changed=True, tower_version='{0}'.format(result['version']))
         except (exc.ServerError, exc.ConnectionError, exc.BadRequest) as excinfo:
             module.fail_json(changed=False, msg='Failed check mode: {0}'.format(excinfo))
+
+
+def tower_argument_spec():
+    return dict(
+        tower_host = dict(),
+        tower_username = dict(),
+        tower_password = dict(no_log=True),
+        tower_verify_ssl = dict(type='bool', default=True),
+        tower_config_file = dict(type='path'),
+    )