Layers

- A layer can not expose new commands, types, and/or tokens.

- A layer can expose its own extensions, which in turn are allowed to expose new commands and tokens.

- Layers are named with the syntax: VK_LAYER_{AUTHOR|FQDN}_<name>

VK_LAYER_LUNARG_object_tracker

VK_LAYER_LUNARG_draw_state

VK_LAYER_LUNARG_mem_tracker

VK_LAYER_LUNARG_param_checker

VK_LAYER_LUNARG_image

VK_LAYER_LUNARG_threading

VK_LAYER_LUNARG_device_limit