Add Asset system

- Add Abstract Asset class which defines Assets
- Add AssetManager class to keep track of all the Asset
- Add AssetFile class to cache the asset without loading it
- Add UUID class to uniquely identify assets
- Add MetaFile class to load meta asset files

CopiumEngine/src/copium/core/Vulkan.cpp

@@ -1,5 +1,7 @@
 #include "copium/core/Vulkan.h"
 
+#include "copium/asset/AssetManager.h"
+
 namespace Copium
 {
   std::unique_ptr<Instance> Vulkan::instance;
@@ -10,13 +12,19 @@ namespace Copium
   void Vulkan::Initialize()
   {
     instance = std::make_unique<Instance>("Copium Engine");
-    window = std::make_unique<Window>( "Copium Engine", 1920, 1080, Window::Mode::Windowed);
+    window = std::make_unique<Window>("Copium Engine", 1920, 1080, Window::Mode::Windowed);
     device = std::make_unique<Device>();
     swapChain = std::make_unique<SwapChain>();
+
+    // TODO: Make the working directory always be relative to the assets folder
+    //       By looking at where the executable is, since that should always be in the bin folder (it currently isn't though)
+    AssetManager::RegisterAssetDir("assets/");
   }
 
   void Vulkan::Destroy()
   {
+    AssetManager::UnregisterAssetDir("assets/");
+    AssetManager::Cleanup();
     swapChain.reset();
     device.reset();
     window.reset();