ssd1306 display of module messages (#1383)

* ssd1306 display of module messages

Supported Modules Include
- rtl_433
- bme280

* Switch to use convertTemp_CtoF

main/User_config.h

@@ -566,6 +566,7 @@ CRGB leds[FASTLED_IND_NUM_LEDS];
 
 /*-----------PLACEHOLDERS FOR OLED/LCD DISPLAY--------------*/
 // The real definitions are in config_M5.h / config_SSD1306.h
+#define pubOled(...)        // display the published message onto the OLED display
 #define displayPrint(...)   // only print if not in low power mode
 #define lpDisplayPrint(...) // print in low power mode