Add Linux support

- Add linux build system using MakeGen
- Fix a swapchain validation error, likelydue to my linux system using a
  different vulkan version
- Make DescriptorPool take in amount of descriptors it needs, instead of
  allocating a mass amount for every pool, causing loads of RAM/VRAM usage

CopiumEngine/src/copium/event/ViewportResize.h

@@ -1,7 +1,6 @@
 #pragma once
 
 #include "copium/event/Event.h"
-#include "copium/event/EventType.h"
 #include "copium/util/BoundingBox.h"
 
 namespace Copium