First version Tray Feeder ready for test

- Tray feeder implementation ready for first tests
- Some refactoring of packml function names
- Added .xtv file to project again because of linking issues
- Added hmi button for packml complete command
- Started media cabinet

PLC/01_Stationen/TrayFeeder/ST_TrayFeederStatus.TcDUT

@@ -8,6 +8,7 @@ STRUCT
 	uiActTray : UINT;
 	xDoorOpen : BOOL;
 	eStateInputStack : E_TFInputStackState;
+	xConnected : BOOL;
 END_STRUCT
 END_TYPE
 ]]></Declaration>