threads.h Functions

Function	Implemented	Standard
call_once	✅	7.28.2.1
cnd_broadcast	✅	7.28.3.1
cnd_destroy	✅	7.28.3.2
cnd_init	✅	7.28.3.3
cnd_signal	✅	7.28.3.4
cnd_timedwait		7.28.3.5
cnd_wait	✅	7.28.3.6
mtx_destroy	✅	7.28.4.1
mtx_init	✅	7.28.4.2
mtx_lock	✅	7.28.4.3
mtx_timedlock		7.28.4.4
mtx_trylock		7.28.4.5
mtx_unlock	✅	7.28.4.6
thrd_create	✅	7.28.5.1
thrd_current	✅	7.28.5.2
thrd_detach	✅	7.28.5.3
thrd_equal	✅	7.28.5.4
thrd_exit	✅	7.28.5.5
thrd_join	✅	7.28.5.6
thrd_sleep		7.28.5.7
thrd_yield		7.28.5.8
tss_create	✅	7.28.6.1
tss_delete	✅	7.28.6.2
tss_get	✅	7.28.6.3
tss_set	✅	7.28.6.4