fixed several memory leaks caused by not including virtual destructors, added a config for the visualizer, next up is lua

src/engine/input/sdlinputprocessor.hpp

@@ -15,6 +15,8 @@ class SdlInputProcessor : public InputProcessor {
 public:
     SdlInputProcessor();
 
+    ~SdlInputProcessor() override = default;
+
 private:
     std::unordered_map<SDL_Keycode,InputProcessorKeycode> keycode_map;
     InputProcessorKeycode get_keycode(SDL_Keycode keycode);