todo list
 - [x] shader compiling
 - [x] windowing + input
 - [x] vulkan device and swapchain, etc
 - [x] draw a triangle
 - [x] texture conversion + compression, etc
 - [ ] texture the triangle
 - [ ] simple text rendering
 - [ ] 3D maths library
 - [ ] model conversion
 - [ ] render a model
 - [ ] render a sky box
 - [ ] PBR + IBL
 - [ ] shadows
 - [ ] MSAA
 - [ ] GI
 - [ ] clustering
 - [ ] bloom
 - [ ] SSAO
 - [ ] SSDO
 - [ ] SSR