Introduce bitst and bytest to avoid bit/byte mix-up #10172

Job	Run time
check-ubuntu-20_04-cmake-gcc	32m 18s
check-ubuntu-20_04-make-clang-smt-z3	13m 41s
check-ubuntu-20_04-make-clang	32m 55s
check-ubuntu-20_04-make-gcc	30m 52s
check-ubuntu-22_04-make-clang	34m 10s
check-docker-image	20m 32s
check-macos-12-cmake-clang	1h 11m 44s
check-macos-13-make-clang	56m 0s
check-string-table	2m 36s
check-ubuntu-20_04-cmake-gcc-KNOWNBUG	18m 57s
check-ubuntu-20_04-cmake-gcc-THOROUGH	21m 47s
check-ubuntu-22_04-cmake-gcc	31m 25s
check-ubuntu-22_04-cmake-gcc-32bit	29m 39s
check-ubuntu-24_04-cmake-gcc-13	31m 53s
check-vs-2019-cmake-build-and-test	49m 58s
check-vs-2022-make-build-and-test	35m 31s
codecov-coverage-report	1h 9m 23s
include-what-you-use	23m 4s
windows-msi-package	22m 1s
	10h 28m 26s

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