headers: Update to Vulkan header version 1.1.97

Updated:
- `include/vulkan/vulkan.h`
- `include/vulkan/vulkan.hpp`
- `include/vulkan/vulkan_android.h`
- `include/vulkan/vulkan_core.h`
- `include/vulkan/vulkan_fuchsia.h`
- `include/vulkan/vulkan_ios.h`
- `include/vulkan/vulkan_macos.h`
- `include/vulkan/vulkan_vi.h`
- `include/vulkan/vulkan_wayland.h`
- `include/vulkan/vulkan_win32.h`
- `include/vulkan/vulkan_xcb.h`
- `include/vulkan/vulkan_xlib.h`
- `include/vulkan/vulkan_xlib_xrandr.h`
- `registry/cgenerator.py`
- `registry/generator.py`
- `registry/genvk.py`
- `registry/reg.py`
- `registry/validusage.json`
- `registry/vk.xml`

registry/genvk.py

@@ -1,6 +1,6 @@
 #!/usr/bin/python3
 #
-# Copyright (c) 2013-2018 The Khronos Group Inc.
+# Copyright (c) 2013-2019 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.
@@ -90,7 +90,7 @@ def makeGenOpts(args):
     # Copyright text prefixing all headers (list of strings).
     prefixStrings = [
         '/*',
-        '** Copyright (c) 2015-2018 The Khronos Group Inc.',
+        '** Copyright (c) 2015-2019 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.',