vkconfig: Add default layer configurations for an external layer ordering and enabling mode

<img width="1282" height="838" alt="Image" src="https://github.com/user-attachments/assets/0ade27ac-1336-4b8f-8e18-94d90a72d860" />

This configuration allows externally sorting enabling layers (using the Vulkan API or `VK_INSTANCE_LAYERS`) but configure the layer settings from Vulkan Configurator