task polling is a runtime processor to handle multiple task based on software timer.
intialize a task
void task_init(struct task_list *item, const char *_name, uint32_t _deadline, task_ob _ob, task_timer _timer)start task
void task_start(void)timer source
/* according user define self timer source */
static task_timer timer = NULLcd build
cmake --build . && ./demo