Python 3.8 collections compatibility fixes.

Includes a new pylint blacklist plugin to prevent regressions.

lib/ansible/module_utils/common/_collections_compat.py

@@ -10,20 +10,37 @@ Third parties should not use this.
 from __future__ import absolute_import, division, print_function
 __metaclass__ = type
 
-
 try:
     """Python 3.3+ branch."""
     from collections.abc import (
+        MappingView,
+        ItemsView,
         KeysView,
+        ValuesView,
         Mapping, MutableMapping,
         Sequence, MutableSequence,
         Set, MutableSet,
+        Container,
+        Hashable,
+        Sized,
+        Callable,
+        Iterable,
+        Iterator,
     )
 except ImportError:
     """Use old lib location under 2.6-3.2."""
     from collections import (
+        MappingView,
+        ItemsView,
         KeysView,
+        ValuesView,
         Mapping, MutableMapping,
         Sequence, MutableSequence,
         Set, MutableSet,
+        Container,
+        Hashable,
+        Sized,
+        Callable,
+        Iterable,
+        Iterator,
     )