Address some pylint issues (#1155)

* Address cyclic-import.

* Address redefined-builtin.

* Address redefined-argument-from-local.

* Address many redefined-outer-name.

* Address pointless-string-statement.

* No longer needed due to separate bugfix.

* Address useless-return.

* Address possibly-used-before-assignment.

* Add TODOs.

* Address super-init-not-called.

* Address function-redefined.

* Address unspecified-encoding.

* Clean up more imports.

plugins/module_utils/_api/context/api.py

@@ -151,7 +151,7 @@ class ContextAPI(object):
                 if filename == METAFILE:
                     filepath = os.path.join(dirname, filename)
                     try:
-                        with open(filepath, "r") as f:
+                        with open(filepath, "rt", encoding="utf-8") as f:
                             data = json.load(f)
                         name = data["Name"]
                         if name == "default":