Object sizes

Please find the sizeof() value of DryOS objects in 550D/108. See mkobjsize_cmd() at FF2EBB48.

object type	sizeof()	comments
dlqueue_t	8
task_t	0x54
sem_t	0x18
event_t	0x18	event flag
mq_t	0x2C	message queue
mutex_t	0x1C
timer_t	0x28