Aliya Pazylbekova

@Keenuts @anishmgoyal any objections to merging this as is and addressing the outstanding comments in a follow up? This way @footballhead will be able to make progress on GLTF work

I tried on three devices I have (1 software lavapipe, and 2 android) and they all support VK_EXT_index_type_uint8. According to https://vulkan.gpuinfo.org/listextensions.php support for the extension is at 62%. Would it...