Add migration task as cli verb

Wabbajack.CLI/OptionsDefinition.cs

@@ -19,7 +19,8 @@ namespace Wabbajack.CLI
             typeof(DeleteFile),
             typeof(Changelog),
             typeof(FindSimilar),
-            typeof(BSADump)
+            typeof(BSADump),
+            typeof(MigrateGameFolderFiles)
         };
     }
 }

Wabbajack.CLI/Program.cs

@@ -22,6 +22,7 @@ namespace Wabbajack.CLI
                     (Changelog opts) => opts.Execute(),
                     (FindSimilar opts) => opts.Execute(),
                     (BSADump opts) => opts.Execute(),
+                    (MigrateGameFolderFiles opts) => opts.Execute(),
                     errs => 1);
         }
     }

Wabbajack.CLI/Verbs/MigrateGameFolderFiles.cs

@@ -0,0 +1,25 @@
+using System.Threading.Tasks;
+using CommandLine;
+using Wabbajack.Common;
+using Wabbajack.Lib.Tasks;
+
+namespace Wabbajack.CLI.Verbs
+{
+    [Verb("migrate-game-folder", HelpText = "Migrates game files into the 'Game Folder Files' in a MO2 directory")]
+    public class MigrateGameFolderFiles : AVerb
+    {
+        [IsDirectory(CustomMessage = "Downloads folder at %1 does not exist!")]
+        [Option('i', "input", HelpText = "Input Mod Organizer 2 Folder", Required = true)]
+        public string MO2Folder { get; set; } = "";
+
+
+        protected override async Task<ExitCode> Run()
+        {
+            if (await MigrateGameFolder.Execute((AbsolutePath)MO2Folder))
+            {
+                return ExitCode.Ok;
+            };
+            return ExitCode.Error;
+        }
+    }
+}