Add a navigation header to the default configuration.

This receives data from the navigation system on
UDP port 30000. It will try to parse all known headers.

etc/config.yaml

@@ -12,3 +12,9 @@ webhooks:
         # Bash .profile. This is the recommended way to avoid accidentally
         # committing a security token into the git repository.
 
+navigation:
+    headers:
+        -
+            type: udp
+            port: 30000
+