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/core/Vulkan.cpp

@@ -22,6 +22,10 @@ namespace Copium
   {
     Timer timer;
     timer.Start();
+
+    glfwSetErrorCallback(glfw_error_callback);
+    CP_ASSERT(glfwInit() == GLFW_TRUE, "Failed to initialize the glfw context");
+
     instance = std::make_unique<Instance>("Copium Engine");
     window = std::make_unique<Window>("Copium Engine", 1440, 810, WindowMode::Windowed);
     device = std::make_unique<Device>();
@@ -97,4 +101,9 @@ namespace Copium
   {
     return instance && window && device && swapChain;
   }
-}
+
+  void Vulkan::glfw_error_callback(int error, const char* description)
+  {
+    CP_ABORT("GLFW Error %d: %s\n", error, description);
+  }
+}