add AssetsManagement

src/engine/AssetsManagement.hpp

@@ -0,0 +1,22 @@
+#pragma once
+
+#include <memory>
+
+class Assets;
+class AssetsLoader;
+class Engine;
+class Content;
+
+class AssetsManagement {
+public:
+    AssetsManagement(Engine& engine);
+
+    void loadAssets(Content* content);
+    
+    Assets* getStorage();
+    const Assets* getStorage() const;
+private:
+    Engine& engine;
+    std::unique_ptr<Assets> assets;
+    std::unique_ptr<AssetsLoader> backgroundLoader;
+};