Update vulkan headers

thirdparty/include/vulkan/vulkan.h

@@ -2,19 +2,9 @@
 #define VULKAN_H_ 1
 
 /*
-** Copyright (c) 2015-2020 The Khronos Group Inc.
+** Copyright 2015-2021 The Khronos Group Inc.
 **
-** Licensed under the Apache License, Version 2.0 (the "License");
-** you may not use this file except in compliance with the License.
-** You may obtain a copy of the License at
-**
-**     http://www.apache.org/licenses/LICENSE-2.0
-**
-** Unless required by applicable law or agreed to in writing, software
-** distributed under the License is distributed on an "AS IS" BASIS,
-** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-** See the License for the specific language governing permissions and
-** limitations under the License.
+** SPDX-License-Identifier: Apache-2.0
 */
 
 #include "vk_platform.h"
@@ -71,6 +61,12 @@
 #endif
 
 
+#ifdef VK_USE_PLATFORM_DIRECTFB_EXT
+#include <directfb.h>
+#include "vulkan_directfb.h"
+#endif
+
+
 #ifdef VK_USE_PLATFORM_XLIB_XRANDR_EXT
 #include <X11/Xlib.h>
 #include <X11/extensions/Xrandr.h>
@@ -83,4 +79,9 @@
 #include "vulkan_ggp.h"
 #endif
 
+
+#ifdef VK_ENABLE_BETA_EXTENSIONS
+#include "vulkan_beta.h"
+#endif
+
 #endif // VULKAN_H_