added help for commands.

RecrownedAthenaeum.ConsoleTools/TextureAtlasTools/TexturePackerCommand.cs

@@ -10,6 +10,15 @@ namespace RecrownedAthenaeum.Tools.TextureAtlasTools
     class TexturePackerCommand : ICommandEngineCommand
     {
         TexturePacker texturePacker;
+
+        public string Help(string argument)
+        {
+            return "Packs a given directory composed of png and jpg files into an atlas. Can also add 9patch properties.\n" +
+                "-i path for input directory containing the textures. Required." +
+                "-o path for output files. Should point to a non-existent file with no extension as the extension will be created for both the atlas definition file and texture file. Required.\n" +
+                "-9p can be used multiple times for defining a 9patch. This parameter requires a name, left patch, right patch, top patch, and bottom patch in the format name,a,b,c,d. Optional.";
+        }
+
         public void Run(string[] arguments)
         {
             for (int i = 0; i < arguments.Length; i++)