Implement event handler

Added event handler implementation.
Moved enginge specific implementation outside graphics module

Signed-off-by: Piotr Krygier <piotrkrygier@everyonecancode@xyz>

red_scarf_engine/red_scarf_engine.h

@@ -13,7 +13,6 @@
 #define RED_SCARF_ENGINE_H_
 
 #include "utilities/commons.h"
-#include "utilities/errors_common.h"
 
 typedef struct rse_context_t* rse_context;