Register protocol in examples

Author: ed7coyne

examples/FirebaseSerialHost_ESP8266/FirebaseSerialHost_ESP8266.ino

@@ -55,6 +55,7 @@ void setup() {
     delay(5000);
   }
 
+  transceiver.RegisterProtocol(new DatabaseProtocol());
   transceiver.begin(&data_serial);
 }
 

examples/FirebaseSerialTerminal_ESP8266/FirebaseSerialTerminal_ESP8266.ino

@@ -55,6 +55,7 @@ void setup() {
   Serial.print("connected: ");
   Serial.println(WiFi.localIP());
 
+  transceiver.RegisterProtocol(new DatabaseProtocol());
   transceiver.begin(&Serial);
 }