added marr.datamapper source code for easy debugging.

Marr.Data/Mapping/RelationshipInfo.cs

@@ -0,0 +1,14 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace Marr.Data.Mapping
+{
+    public class RelationshipInfo : IRelationshipInfo
+    {
+        public RelationshipTypes RelationType { get; set; }
+
+        public Type EntityType { get; set; }
+    }
+}