Minor refactoring

- Excluded union internal variable from static code analysis
- Excluded unused field in Suncpec struct from static code analysis for later use

PLC/DUTs/Modbus/ErrorWarningRegisters/U_EMS_CONTROLS_REGISTER.TcDUT

@@ -3,6 +3,7 @@
   <DUT Name="U_EMS_CONTROLS_REGISTER" Id="{a1ff95b9-162c-49e5-b53b-4cd068746597}">
     <Declaration><![CDATA[TYPE U_EMS_CONTROLS_REGISTER :
 UNION
+	{attribute 'analysis' := '-33'}
 	wRegister : WORD;
 	stBitmap : ST_WORD_EMS_CONTROLS_BITMAP;
 END_UNION

PLC/POUs/Sunspec/Refu/ST_SUNSPEC_CURRENT_VALUES.TcDUT

@@ -66,6 +66,7 @@ STRUCT
 	// Current inverter status
 	{attribute 'OPC.UA.DA' := '1'}
 	{attribute 'OPC.UA.DA.Access' := '1'}
+	{attribute 'analysis' := '-33'}
 	uiStatus : UINT;
 END_STRUCT
 END_TYPE