network: add udp toggles to control rebroadcast

Add two new toggles to the Network section:

- udp_rebroadcast: Rebroadcasting mesh packets via UDP

- udp_skip_lora: Skip LoRa for locally generated packets via UDP

This enables us to implement #9999 without relying on roles.

Signed-off-by: Sergio Lopez <slp@redhat.com>

Author: slp

meshtastic/config.proto

@@ -592,6 +592,16 @@ message Config {
        */
       UDP_BROADCAST = 0x0001;
     }
+
+    /*
+     * Enable rebroadcasting mesh packets via UDP
+     */
+    bool udp_rebroadcast = 12;
+
+    /*
+     * Enable skipping LoRa for locally generated packets sent via UDP
+     */
+    bool udp_skip_lora = 13;
   }
 
   /*