re-organze namespace

ModpackUpdater/UpdateAction.cs

@@ -0,0 +1,12 @@
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+
+namespace ModpackUpdater;
+
+public class UpdateAction : InstallAction
+{
+    [JsonConverter(typeof(StringEnumConverter))]
+    public UpdateActionType Type { get; set; }
+    public string SrcPath { get; set; }
+    public bool IsDirectory { get; set; }
+}