start redesign for zugferd rest api

Modules.Interfaces/ZUGFeRDInterface.vb

@@ -9,7 +9,7 @@ Public Class ZUGFeRDInterface
     Private _logConfig As LogConfig
     Private _logger As Logger
 
-    Private Const ZUGFERD_CONVERTER_EXE = "ZUGFeRDInterface\pdf_zugferd_test.exe"
+    Private Const ZUGFERD_CONVERTER_EXE = "ZUGFeRDInterface\pdf_zugferd_lib\pdf_zugferd_test.exe"
     Private Const ZUGFERD_CONVERTER_SUCCESS_MESSAGE = "Document contains ZUGFeRD data."
 
     Public Enum ErrorType
@@ -18,9 +18,14 @@ Public Class ZUGFeRDInterface
         NoValidZugferd
     End Enum
 
+    Public ReadOnly Property FileGroup As FileGroups
+    Public ReadOnly Property PropertyValues As PropertyValues
+
     Public Sub New(LogConfig As LogConfig)
         _logConfig = LogConfig
         _logger = _logConfig.GetLogger()
+        FileGroup = New FileGroups(_logConfig)
+        PropertyValues = New PropertyValues(_logConfig)
     End Sub
 
     ''' <summary>