Add StructuredType.Count property

Author: C0nquistadore

src/Dibix/Parameter/StructuredType.cs

@@ -22,6 +22,7 @@ public abstract class StructuredType : IEnumerable<SqlDataRecord>
 
         #region Properties
         public abstract string TypeName { get; }
+        public int Count => _records.Count;
         #endregion
 
         #region Constructor