Fixes for WinRM/PowerShell support in v2.

- Add support for inserting module args into PowerShell modules.  Fixes #11661.
- Support Windows paths containing spaces.  Applies changes from #10727 to v2.  Fixes #9999.  Should also fix ansible/ansible-modules-core#944 and ansible/ansible-modules-core#1007.
- Change how execution policy is set for running remote scripts.  Applies changes from #11092 to v2.  Also fixes ansible/ansible-modules-core#1776.
- Use codepage 65001 (UTF-8) for WinRM connection instead of default (CP437), convert command to UTF-8 and results from UTF-8.  Replaces changes from #10024.  Fixes #11198.
- Close WinRM connection when task completes.
- Use win_stat, win_file and win_copy modules instead of stat, file and copy when called from within other action plugins (only when using WinRM+PowerShell).
- Unquote Windows path arguments before passing to win_stat, win_file, win_copy and slurp modules (only when using WinRM/PowerShell).
- Check for win_ping module to determine if core modules are missing (only when using WinRM/PowerShell).
- Add stdout_lines to result from running low level commands (so stdout_lines is available when using raw/script).
- Update copy action plugin to use shell functions for joining paths and checking for trailing slash.
- Update fetch action plugin to unquote source path when using Windows paths.
- Add win_copy and win_template action plugins that inherit from copy and template.
- Support running .bat and .cmd scripts using default system encoding instead of UTF-8.
- Always send PowerShell commands as base64-encoded blobs to allow for running simple PowerShell commands via raw.
- Support running modules on Windows with interpreters other than PowerShell.
- Update integration tests to support above changes and test unicode fixes.
- Add test for win_user error from ansible/ansible-modules-core#1241 (fixed by ansible/ansible-modules-core#1774).
- Add test for additional win_stat output values (implemented by ansible/ansible-modules-core#1473).
- Add test for OS architecture and name from setup.ps1 (implemented by ansible/ansible-modules-core#1100).

All WinRM integration tests pass for me with these changes.

test/integration/roles/test_win_file/tasks/main.yml

@@ -32,7 +32,7 @@
 #      - "file_result.state == 'file'"
 
 - name: verify that we are checking an absent file
-  win_file: path={{win_output_dir}}\bar.txt state=absent
+  win_file: path={{win_output_dir}}/bar.txt state=absent
   register: file2_result
 
 - name: verify that the file was marked as changed
@@ -42,7 +42,7 @@
 #      - "file2_result.state == 'absent'"
 
 - name: verify we can touch a file
-  win_file: path={{win_output_dir}}\baz.txt state=touch
+  win_file: path={{win_output_dir}}/baz.txt state=touch
   register: file3_result
 
 - name: verify that the file was marked as changed
@@ -85,8 +85,8 @@
 #      - "chown_result.failed == True"
 #      - "file_exists_result.stat.exists == False"
 #
-- name: clean up
-  win_file: path=/tmp/worldwritable state=absent
+#- name: clean up
+#  win_file: path=/tmp/worldwritable state=absent
 
 #- name: create soft link to file
 #  win_file: src={{output_file}} dest={{win_output_dir}}/soft.txt state=link
@@ -107,7 +107,7 @@
 #      - "file6_result.changed == true"
 #
 - name: create a directory
-  win_file: path={{win_output_dir}}\foobar state=directory
+  win_file: path={{win_output_dir}}/foobar state=directory
   register: file7_result
 
 - debug: var=file7_result
@@ -134,22 +134,22 @@
 #  when: selinux_installed.stdout != "" and selinux_enabled.stdout != "Disabled"
 
 - name: remote directory foobar
-  win_file: path={{win_output_dir}}\foobar state=absent
+  win_file: path={{win_output_dir}}/foobar state=absent
 
 - name: remove file foo.txt
-  win_file: path={{win_output_dir}}\foo.txt state=absent
+  win_file: path={{win_output_dir}}/foo.txt state=absent
 
 - name: remove file bar.txt
-  win_file: path={{win_output_dir}}\foo.txt state=absent
+  win_file: path={{win_output_dir}}/foo.txt state=absent
 
 - name: remove file baz.txt
-  win_file: path={{win_output_dir}}\foo.txt state=absent
+  win_file: path={{win_output_dir}}/foo.txt state=absent
 
 - name: win copy directory structure over
   win_copy: src=foobar dest={{win_output_dir}}
 
 - name: remove directory foobar
-  win_file: path={{win_output_dir}}\foobar state=absent
+  win_file: path={{win_output_dir}}/foobar state=absent
   register: file14_result
 
 - debug: var=file14_result