Add files via upload

tools/viewer/IImageViewer.cs

@@ -0,0 +1,21 @@
+namespace KortAppZ.Tools.Viewer
+{
+    public interface IImageViewer
+    {
+        /// <summary>
+        /// 加载图片文件
+        /// </summary>
+        /// <param name="filePath">图片文件路径</param>
+        void LoadImage(string filePath);
+        
+        /// <summary>
+        /// 显示图片
+        /// </summary>
+        void ShowImage();
+        
+        /// <summary>
+        /// 关闭图片查看器
+        /// </summary>
+        void CloseViewer();
+    }
+}