Refactor project

Crealned up some TODOs, FIXMEs etc. Added better error handling. Looks
better, feels better.

graphics/src/window.h

@@ -17,23 +17,26 @@
 /* Vulkan header MUST be included before glfw */
 #include <GLFW/glfw3.h>
 
+#include "rse_window_errors.h"
+#include "utilities/rse_commons.h"
+
 /**
  * @brief Initialize window
  *
- * @return uint16_t WINDOW_SUCCESS on success. Possible errors:
+ * @return rse_err_t WINDOW_SUCCESS on success. Possible errors:
  *                  WINDOW_VULKAN_NOT_LOADED
  *                  WINDOW_WINDOW_NOT_CREATED
  *
  */
-uint16_t window_init();
+rse_err_t window_init();
 
 /**
  * @brief Main window loop
  *
  * @param vulkan_state
- * @return uint16_t WINDOW_SUCCESS or error code
+ * @return rse_err_t WINDOW_SUCCESS or error code
  */
-uint16_t window_loop();
+rse_err_t window_loop();
 
 /**
  * @brief Closes window and terminates GLFW