Add manifests to many more gn built exe files

tools/imagediff/BUILD.gn

 # Copyright 2014 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import("//build/symlink.gni")
 
 if (current_toolchain == host_toolchain) {
   executable("imagediff") {
     output_name = "image_diff"  # Different than dir nam for historical reasons.
     sources = [
       "image_diff.cc",
       "image_diff_png.cc",
       "image_diff_png.h",
     ]
 
     configs += [ "//build/config/compiler:wexit_time_destructors" ]
 
     deps = [
       "//base",
       "//build/config/sanitizers:deps",
+      "//build/win:default_exe_manifest",
       "//third_party/libpng",
       "//third_party/zlib",
     ]
   }
 } else {
   # Aliases for compatibility with GYP.
   binary_symlink("imagediff") {
     binary_label = ":$target_name($host_toolchain)"
     binary_output_name = "image_diff"
   }
 }