layers: Whitelisted new extensions for 1.0.28
layers: Whitelisted new extensions for 1.0.28

Change-Id: Ife1621716ec9593de3ca528d071b707515acb8c2

KhronosGroup/Vulkan-LoaderAndValidationLayers,KhronosGroup/Vulkan-LoaderAndValidationLayers,KhronosGroup/Vulkan-LoaderAndValidationLayers,KhronosGroup/Vulkan-LoaderAndValidationLayers