core: signal blob implementation #10150

Job	Run time
run-ubuntu-unit-tests (-DFLB_JEMALLOC=On, gcc)	13m 41s
run-ubuntu-unit-tests (-DFLB_JEMALLOC=On, clang)	13m 54s
run-ubuntu-unit-tests (-DFLB_JEMALLOC=Off, gcc)	13m 3s
run-ubuntu-unit-tests (-DFLB_JEMALLOC=Off, clang)	13m 11s
run-ubuntu-unit-tests (-DFLB_SMALL=On, gcc)	13m 8s
run-ubuntu-unit-tests (-DFLB_SMALL=On, clang)	13m 57s
run-ubuntu-unit-tests (-DSANITIZE_ADDRESS=On, gcc)	13m 28s
run-ubuntu-unit-tests (-DSANITIZE_ADDRESS=On, clang)	13m 2s
run-ubuntu-unit-tests (-DSANITIZE_UNDEFINED=On, gcc)	13m 15s
run-ubuntu-unit-tests (-DSANITIZE_UNDEFINED=On, clang)	13m 17s
run-ubuntu-unit-tests (-DFLB_COVERAGE=On, gcc)	47m 13s
run-ubuntu-unit-tests (-DFLB_SANITIZE_MEMORY=On, gcc)	12m 55s
run-ubuntu-unit-tests (-DFLB_SANITIZE_MEMORY=On, clang)	12m 59s
run-ubuntu-unit-tests (-DFLB_SANITIZE_THREAD=On, gcc)	12m 52s
run-ubuntu-unit-tests (-DFLB_SANITIZE_THREAD=On, clang)	12m 56s
run-aarch64-unit-tests (Aarch64 actuated testing, -DFLB_WITHOUT_flb-it-network=1 -DFLB_WITHOUT_fl...	2m 56s
run-qemu-ubuntu-unit-tests (s390x)	22m 58s
run-macos-unit-tests (-DFLB_JEMALLOC=Off)	13m 15s
run-macos-unit-tests (-DFLB_SANITIZE_MEMORY=On)	12m 44s
run-macos-unit-tests (-DFLB_SANITIZE_THREAD=On)	12m 32s
Unit tests (matrix)	1s
	4h 57m 17s

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