feat: add basic towers rendering

include/render/WorldRenderer.h

@@ -1,8 +1,8 @@
 #pragma once
 
 #include "game/World.h"
-#include "render/loader/GLLoader.h"
 #include "render/Renderer.h"
+#include "render/VertexCache.h"
 
 #include <glm/glm.hpp>
 
@@ -29,12 +29,16 @@ private:
     float m_Zoom = 1;
     float m_CamSensibility = 1;
     bool m_TowerPlacePopupOpened = false;
+    VertexCache m_TowersCache;
 public:
     WorldRenderer(game::World* world, client::ClientGame* client);
     ~WorldRenderer();
 
     void loadModels();
 
+    void addTower(game::TowerPtr tower);
+    void removeTower(game::TowerPtr tower);
+
     void update();
     void render();