Add generic detail payload variant to TAKPacket

meshtastic/atak.options

@@ -5,3 +5,4 @@
 *GeoChat.message max_size:200
 *GeoChat.to max_size:120
 *GeoChat.to_callsign max_size:120
+*TAKPacket.detail max_size:220

meshtastic/atak.proto

@@ -40,6 +40,12 @@ message TAKPacket {
      * ATAK GeoChat message
      */
     GeoChat chat = 6;
+
+    /*
+     * Generic CoT detail XML
+     * May be compressed / truncated by the sender
+     */
+    bytes detail = 7;
   }
 }