refactoring async

- centralized skipping
- also fixed module name broken by previous refactor
- let action modules handle async processing
- moved async into base action class's module exec
- action plugins can now run final action as async
- actually skip copy if base skips
- fixed normal for new paths
- ensure internal stat is never async
- default poll to 10 as per docs
- added hint for callback fix on poll
- restructured late tmp, now a pipeline query
- moving action handler to connection as networking does
- fixed network assumption invocation is always passed
- centralized key cleanup, normalized internal var
- _supress_tmpdir_delete now in _ansible_xxx and gets removed from results
- delay internal key removal till after we use em
- nicer tmp removing, using existing methods
- moved cleanup tmp flag to mking tmp func

lib/ansible/modules/windows/async_wrapper.ps1

@@ -435,7 +435,7 @@ $result = @{
     finished=0;
     results_file=$results_path;
     ansible_job_id=$local_jid;
-    _suppress_tmpdir_delete=$true;
+    _ansible_suppress_tmpdir_delete=$true;
     ansible_async_watchdog_pid=$watchdog_pid
 }