maint: added livewatch asset

Assets/Plugins/LiveWatchLite/Scripts/Editor/WatchGUICache.cs

@@ -0,0 +1,20 @@
+using System.Collections.Generic;
+using UnityEngine;
+
+namespace Ingvar.LiveWatch.Editor
+{
+    public class WatchGUICache
+    {
+        private Dictionary<string, GUIContent> _textToGUIContentCache = new();
+
+        public GUIContent GetContent(string text)
+        {
+            if (_textToGUIContentCache.TryGetValue(text, out var guiContent))
+                return guiContent;
+
+            guiContent = new GUIContent(text, text);
+            _textToGUIContentCache[text] = guiContent;
+            return guiContent;
+        }
+    }
+}