File attributes (#18213)

* added attributes to base file params

* dont change attributes when none

* fixed test to deal with new attributes

test/units/module_utils/test_basic.py

@@ -422,6 +422,7 @@ class TestModuleUtilsBasic(ModuleTestCase):
         final_params.update(dict(
             path = '/path/to/real_file',
             secontext=['unconfined_u', 'object_r', 'default_t', 's0'],
+            attributes=None,
         ))
 
         # with the proper params specified, the returned dictionary should represent