vkpractice 1.7.0 - subcommands "models" and "imshow", and postprocessing via --post.

vkpractice 1.4.0 - headless rendering, more control, more flexibility, and rendering-in-CI

vkpractice 1.3.0 - multi-mesh, multi-model, scene layout, and better RAII

Add basic CI, extract some Vulkan initialization.

Vulkan-Tutorial 1.0.0 - completed vulkan-tutorial.com with Vulkan-Hpp and moving on to new things!