add utility to remove prod names from track titles

+ move code to handle args and print startup info to other files
+ update app version number

app/print_help.py

@@ -0,0 +1,18 @@
+from app.settings import ALLARGS
+
+args = ALLARGS
+
+HELP_MESSAGE = f"""
+Usage: swingmusic [options]
+
+Options:
+    {args.build}: Build the application (in development)
+    {args.host}: Set the host
+    {args.port}: Set the port
+
+    {', '.join(args.show_feat)}: Do not extract featured artists from the song title
+    {', '.join(args.show_prod)}: Do not hide producers in the song title
+
+    {', '.join(args.help)}: Show this help message
+    {', '.join(args.version)}: Show the app version
+"""