Merge pull request #595 from LeeLeahy2/net-ntp

NTP now using the network layer

Author: nseidle

Firmware/RTK_Surveyor/Developer.ino

@@ -30,6 +30,7 @@ void ethernetWebServerStopESP32W5500() {}
 void menuNTP() {systemPrint("NOT compiled");}
 void ntpServerBegin() {}
 void ntpServerUpdate() {}
+void ntpValidateTables() {}
 
 #endif // COMPILE_ETHERNET