1. posix pthread.h: pthread, pthread_barrier, pthread_cond, pthread_mutex, , pthread_rwlock, pthread_spin, etc
2. posix semaphore.h: sem_*
3. posix mqueue.h: mq_*
4. posix time.h: timer_*
5. to support posix, add tos_barrier, tos_bitmap, tos_rwlock, tos_stopwatch, change name of k_task_t from a char * pointer to a char array.
6. sample, see examples\posix
7. project, see board\TencentOS_tiny_EVB_MX_Plus\KEIL\posix

1. tos_ring_q_create_dyn
2. tos_chr_fifo_create_dyn
3. tos_msg_q_create_dyn
4. tos_mail_q_create_dyn
5. tos_bin_heap_create_dyn
6. tos_prio_q_create_dyn
7. tos_prio_msg_q_create_dyn
8. tos_prio_mail_q_create_dyn

add license for kernel

first commit for opensource