Added API server to request shutdown #1907

Job	Run time
Check codespell conformance	10s
Check Docker image (Debug)	2m 47s
Check Docker image (Release)	3m 14s
Check capio-common clang-format conformance	12s
Check capio-tests clang-format conformance	16s
Check capio-posix clang-format conformance	17s
Check capio-server clang-format conformance	21s
Build Debug with g++-10	4m 27s
Build Debug with g++-11	3m 49s
Build Debug with clang-14	2m 54s
Build Debug with clang-17	3m 2s
Build Debug with clang-16	2m 51s
Build Debug with clang-13	3m 7s
Build Debug with clang-15	2m 51s
Build Release with g++-13	3m 27s
Build Release with clang-13	3m 7s
Build Release with clang-15	3m 18s
Build Release with g++-11	2m 40s
Build Debug with clang-18	2m 46s
Build Debug with g++-13	3m 18s
Build Release with clang-16	3m 12s
Build Release with g++-12	3m 23s
Build Release with clang-14	2m 51s
Build Release with clang-18	2m 54s
Build Debug with g++-12	3m 21s
Build Release with g++-10	2m 58s
Build Release with clang-17	3m 9s
Codecov report upload	-1s
	1h 10m 41s

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