utils: Fill in layer and extension from info struct
utils: Fill in layer and extension from info struct

We've passed in the sample info struct and it includes
the extension_names and layer_names vectors. Use those
to fill in the count and data pointer for
vkCreateInstance and vkCreateDevice.

Radamanthe/VulkanSamples,Radamanthe/VulkanSamples,Radamanthe/VulkanSamples,Radamanthe/VulkanSamples,Radamanthe/VulkanSamples,Radamanthe/VulkanSamples