renderer_vulkan: Implement renderer and rasterizer classes

* Also WIP. Vulkan crashes when allocating command buffers, need to investigate...

src/video_core/renderer_base.h

@@ -21,6 +21,9 @@ public:
     /// Initialize the renderer
     virtual VideoCore::ResultStatus Init() = 0;
 
+    /// Returns the rasterizer owned by the renderer
+    virtual VideoCore::RasterizerInterface* Rasterizer() = 0;
+
     /// Shutdown the renderer
     virtual void ShutDown() = 0;
 
@@ -37,6 +40,8 @@ public:
     /// Cleans up after video dumping is ended
     virtual void CleanupVideoDumping() = 0;
 
+    virtual void Sync() = 0;
+
     /// Updates the framebuffer layout of the contained render window handle.
     void UpdateCurrentFramebufferLayout(bool is_portrait_mode = {});
 
@@ -51,10 +56,6 @@ public:
         return m_current_frame;
     }
 
-    VideoCore::RasterizerInterface* Rasterizer() const {
-        return rasterizer.get();
-    }
-
     Frontend::EmuWindow& GetRenderWindow() {
         return render_window;
     }
@@ -63,11 +64,8 @@ public:
         return render_window;
     }
 
-    void Sync();
-
 protected:
     Frontend::EmuWindow& render_window; ///< Reference to the render window handle.
-    std::unique_ptr<VideoCore::RasterizerInterface> rasterizer;
     f32 m_current_fps = 0.0f; ///< Current framerate, should be set by the renderer
     int m_current_frame = 0;  ///< Current frame, should be set by the renderer
 };