Add option to disable text clipping in text boxes

Source/Engine/UI/GUI/Common/TextBoxBase.cs

@@ -192,6 +192,12 @@ namespace FlaxEngine.GUI
             }
         }
 
+        /// <summary>
+        /// Gets or sets a value indicating whether apply clipping mask on text during rendering.
+        /// </summary>
+        [EditorOrder(529)]
+        public bool ClipText { get; set; } = true;
+
         /// <summary>
         /// Gets or sets textbox background color when the control is selected (has focus).
         /// </summary>