Implemented fixes and improvements during comissioning

- New Balancing mode
- HMI Interface for Inverterdata implemented
- Adjusted GVL_CONFIG values
- Read inverter data even when inverter is off
- Added OPC UA settings to inverter data hmi interface
- Added multisettings to safety project for strings

PLC/DUTs/E_BMS_CONTROL_MODE.TcDUT

@@ -9,7 +9,8 @@ TYPE E_BMS_CONTROL_MODE :
 	AUTO_LOCAL := 2,
 	SAFETY_CHECK := 3,
 	CAPACITY_TEST := 4,
-	MANUAL := 5
+	MANUAL := 5,
+	BALANCING := 6
 );
 END_TYPE
 ]]></Declaration>