Update glad to include Vulkan 1.3

deps/glad/vk_platform.h

@@ -2,19 +2,9 @@
 /* File: vk_platform.h */
 /* */
 /*
-** Copyright (c) 2014-2017 The Khronos Group Inc.
+** Copyright 2014-2022 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
 */
 
 
@@ -52,7 +42,7 @@ extern "C"
     #define VKAPI_CALL __stdcall
     #define VKAPI_PTR  VKAPI_CALL
 #elif defined(__ANDROID__) && defined(__ARM_ARCH) && __ARM_ARCH < 7
-    #error "Vulkan isn't supported for the 'armeabi' NDK ABI"
+    #error "Vulkan is not supported for the 'armeabi' NDK ABI"
 #elif defined(__ANDROID__) && defined(__ARM_ARCH) && __ARM_ARCH >= 7 && defined(__ARM_32BIT_STATE)
     /* On Android 32-bit ARM targets, Vulkan functions use the "hardfloat" */
     /* calling convention, i.e. float parameters are passed in registers. This */
@@ -68,7 +58,9 @@ extern "C"
     #define VKAPI_PTR
 #endif
 
-#include <stddef.h>
+#if !defined(VK_NO_STDDEF_H)
+    #include <stddef.h>
+#endif /* !defined(VK_NO_STDDEF_H) */
 
 #if !defined(VK_NO_STDINT_H)
     #if defined(_MSC_VER) && (_MSC_VER < 1600)