read config from json on SPIFFS

src/Sprocket.cpp

@@ -42,6 +42,12 @@ void Sprocket::loop(){
     scheduler.execute();
 }
 
+void Sprocket::dispatch( uint32_t from, String &msg ) {
+    MeshMessage mMsg;
+    if(mMsg.fromJsonString(msg)){
+        dispatchMessageToPlugins(mMsg);
+    }
+}
 
 void Sprocket::addPlugin(Plugin* p){
     plugins.reserve(1);