CC-1799 : Live Studio Playout from media library (pytagsfs)

-code cleanup, refactoring, and files moved from a watched-dir
 to a non-watched dir are now properly handled

python_apps/media-monitor/airtimefilemonitor/workerprocess.py

@@ -0,0 +1,12 @@
+class MediaMonitorWorkerProcess:
+
+    #this function is run in its own process, and continuously
+    #checks the queue for any new file events.
+    def process_file_events(self, queue, notifier):
+
+        while True:
+            event = queue.get()
+            notifier.logger.info("received event %s", event)
+            notifier.update_airtime(event)
+
+