Added localization framework before its too late lol

.vs/NSModCreator/project-colors.json

@@ -0,0 +1,11 @@
+{
+  "Version": 1,
+  "ProjectMap": {
+    "5d354e3f-ea1a-4fcc-9228-fefa125bcfa8": {
+      "ProjectGuid": "5d354e3f-ea1a-4fcc-9228-fefa125bcfa8",
+      "DisplayName": "NSModCreator",
+      "ColorIndex": 0
+    }
+  },
+  "NextColorIndex": 1
+}

NSModCreator/LocalizationAttachedPropertyHolder.cs

@@ -0,0 +1,57 @@
+using Avalonia;
+using Avalonia.Controls;
+using NSModCreator.Localizations;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace NSModCreator.Localizations
+{
+    public class LocalizationAttachedPropertyHolder
+    {
+        public static AvaloniaProperty<string> UidProperty =
+            AvaloniaProperty.RegisterAttached<LocalizationAttachedPropertyHolder, AvaloniaObject, string>("Uid");
+
+        static LocalizationAttachedPropertyHolder()
+        {
+            TextBlock.TextProperty.Changed.Subscribe(next =>
+            {
+                var uid = GetUid((AvaloniaObject)next.Sender);
+                if (uid != null) 
+                {
+                    next.Sender.SetValue(TextBlock.TextProperty, AppResources.ResourceManager.GetString(uid.ToString()));
+                }
+            });
+
+            ContentControl.ContentProperty.Changed.Subscribe(next =>
+            {
+                var uid = GetUid((AvaloniaObject)next.Sender);
+                if (uid != null)
+                {
+                    next.Sender.SetValue(ContentControl.ContentProperty, AppResources.ResourceManager.GetString(uid.ToString()));
+                }
+            });
+
+            TextBox.WatermarkProperty.Changed.Subscribe(next =>
+            {
+                var uid = GetUid((AvaloniaObject)next.Sender);
+                if (uid != null)
+                {
+                    next.Sender.SetValue(TextBox.WatermarkProperty, AppResources.ResourceManager.GetString(uid.ToString()));
+                }
+            });
+        }
+
+        public static void SetUid(AvaloniaObject target, string value)
+        {
+            target.SetValue(UidProperty, value);
+        }
+
+        public static string GetUid(AvaloniaObject target)
+        {
+            return (string)target.GetValue(UidProperty);
+        }
+    }
+}