Support new VK_KHR_opacity_micromap in mm_opacity sample..

[oscarbg]

Hi,
this ext is very recent only supported in NV vulkan dev drivers and still no Vulkan SDK support (should be coming this month seems)(KhronosGroup/Vulkan-Docs#2745)..
would be nice to support this KHR variant in addition of current EXT in case other vendors support KHR but not the EXT variant..
thanks..

[mklefrancois]

Hi @oscarbg, thank you for bringing this to our attention! We will add support for VK_KHR_opacity_micromap a few days after the new Vulkan SDK ships, assuming the extension is included in it.

[oscarbg]

@mklefrancois thanks! new vulkan sdk is released and seems extension is supported!

[mklefrancois]

I saw it this morning, working on it 😄