jj: add initial propertygrid functions

EDMI_ClientSuite/EntityDesigner/ControlProperties/ClassBaseProperties.vb

@@ -0,0 +1,10 @@
+Namespace ControlProperties
+    Public MustInherit Class ClassBaseProperties
+
+        Public Property Id As Integer
+        Public Property Type As String
+        Public Property Name As String
+
+    End Class
+End Namespace
+

EDMI_ClientSuite/EntityDesigner/ControlProperties/ClassLabelProperties.vb

@@ -0,0 +1,7 @@
+Namespace ControlProperties
+    Public Class ClassLabelProperties
+        Inherits ClassBaseProperties
+    End Class
+
+End Namespace
+