Add Support for Annex K functions according to C11 #124

Job	Run time
cache-maker	7m 19s
release-zephyr (./.github/do-zephyr)	38m 54s
minsize-zephyr (./.github/do-zephyr)	36m 36s
release-zephyr (-Dio-float-exact=false -Dio-long-long=true -Dio-percent-b=true -Dio-long-double=t...	37m 8s
minsize-zephyr (-Dio-float-exact=false -Dio-long-long=true -Dio-percent-b=true -Dio-long-double=t...	36m 10s
release-zephyr (-Dformat-default=integer -Dfreestanding=true -Dposix-io=false -Dnewlib-obsolete-m...	37m 16s
minsize-zephyr (-Dformat-default=integer -Dfreestanding=true -Dposix-io=false -Dnewlib-obsolete-m...	35m 56s
release-zephyr (-Dtinystdio=false, ./.github/do-zephyr)	21m 56s
minsize-zephyr (-Dtinystdio=false, ./.github/do-zephyr)	21m 22s
release-zephyr (-Dtinystdio=false -Dnewlib-io-float=true -Dio-long-long=true -Dio-long-double=tru...	20m 6s
minsize-zephyr (-Dtinystdio=false -Dnewlib-io-float=true -Dio-long-long=true -Dio-long-double=tru...	18m 25s
	5h 11m 8s

Provide feedback