Windows: Add "special" parameter types to docs (#42853)

* Windows: Add special parameter types

Adding explicit parameter types now exposes this information in the
module documentation, and proves really helpful.

We only do this for non-string types as strings, mostly because strings
are implicit.

PS We also make copyright statements consistent and use #Requires for
explicit library imports

* Type "string" must be type "str"

* A few more Copyright corrections

* More fixes

* Don't add file encoding to Powershell files

* Don't add missing interfacetypes parameter

Otherwise CI demands an incorrect version_added

* Small fix

lib/ansible/modules/windows/win_tempfile.py

@@ -1,7 +1,7 @@
 #!/usr/bin/python
 # coding: utf-8 -*-
 
-# Copyright: (c) 2017 Dag Wieers <dag@wieers.com>
+# Copyright: (c) 2017, Dag Wieers <dag@wieers.com>
 # GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
 
 ANSIBLE_METADATA = {'metadata_version': '1.1',
@@ -28,6 +28,7 @@ options:
     description:
       - Location where temporary file or directory should be created.
       - If path is not specified default system temporary directory (%TEMP%) will be used.
+    type: path
     default: '%TEMP%'
   prefix:
     description: