[ALL] TorrentZip stuff

Taking a cue from RomVault and GordonJ, I'm including the Zlib code as converted by DotNetZip as well as creating a couple slightly more maleable structures for writing archives.

SabreTools.Helper/Objects/ZipFIle.cs

@@ -0,0 +1,17 @@
+using Ionic.Zlib;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace SabreTools.Helper
+{
+	/// <remarks>
+	/// Based on work by GordonJ for RomVault
+	/// https://github.com/gjefferyes/RomVault/blob/master/ROMVault2/SupportedFiles/Zip/zipFile.cs
+	/// </remarks>
+	public class ZipFIle
+	{
+	}
+}