Sorting in DataView with IComparable

	modified:   DataShim/DataShim.csproj
	modified:   DataShim/Program.cs
	modified:   DataShim/org/rufwork/polyfills/data/DataRow.cs
	modified:   DataShim/org/rufwork/polyfills/data/DataTable.cs
	modified:   DataShim/org/rufwork/polyfills/data/DataView.cs
	modified:   DataShim/org/rufwork/polyfills/data/collections/DataColumnSet.cs