ssd1306 display of module messages (#1383)

* ssd1306 display of module messages

Supported Modules Include
- rtl_433
- bme280

* Switch to use convertTemp_CtoF

main/ZgatewayRTL_433.ino

@@ -245,6 +245,7 @@ void rtl_433_Callback(char* message) {
     storeRTL_433Discovery(RFrtl_433_ESPdata, (char*)model.c_str(), (char*)uniqueid.c_str());
     pub((char*)topic.c_str(), RFrtl_433_ESPdata);
     storeSignalValue(MQTTvalue);
+    pubOled((char*)topic.c_str(), RFrtl_433_ESPdata);
   }
 #  ifdef MEMORY_DEBUG
   Log.trace(F("Post rtl_433_Callback: %d" CR), ESP.getFreeHeap());