2022-04-12/Jerry Wang

Action:
1. [Improve] SetChargingProfile fuction
   a. Rename ChargePointMaxProfile as ChargingStationMaxProfile.
   b. Add checking stack quantity logic.
   c. Modify checking Profile quantity logic.
   d. Add checking replaceable profile logic.
   e. Modify parsing chargingProfile format logic to avoid crash.
2. Change variableVersion to 6.
   a. Set ProfileStackLevel default value to '3'.
3. [Bug fix] Clear the counterPingSend when the connection established.

File:
1. EVSE/Modularization/ocpp20/MessageHandler.c
--> Action 1,2
2. EVSE/Modularization/ocpp20/Module_OcppBackend20.c
--> Action 3

EVSE/Modularization/ocpp20/Module_OcppBackend20.c

@@ -204,8 +204,8 @@ static int OCPP20Callback(struct lws *wsi, enum lws_callback_reasons reason, voi
 			ConnectionEstablished=1;
 			SetOcppConnStatus(TRUE);
 			refreshStartTimer(&startTime.pingOn);
-			queueOpInfo.PreTransactionMessageResend = 0;
 			counterPingSend = 0;
+			queueOpInfo.PreTransactionMessageResend = 0;
 			break;
 		case LWS_CALLBACK_CLIENT_CONNECTION_ERROR://1
 			DEBUG_ERROR("LWS_CALLBACK_CLIENT_CONNECTION_ERROR %s\n", (char *)in );