Main loop
Action Func (must always be suported)
betray_action_func_set
void betray_action_func_set(void (*input_compute_func)(BInputState *data, void *user_pointer), void *user_pointer);
Description: set a function pointer that will be the main loop of the applicationbetray_launch_main_loop
void betray_launch_main_loop(void);
Description: Start the main loop