doc: add markdown file about TCTIs #1661

Job	Run time
scanbuild	8m 53s
test-coverage	9m 19s
coverity-test	0s
build-test (ubuntu-18.04, gcc)	8m 29s
build-test (ubuntu-18.04, clang)	6m 47s
build-test (ubuntu-20.04, gcc)	8m 46s
build-test (ubuntu-20.04, clang)	6m 34s
build-test (fedora-32, gcc)	10m 50s
build-test (fedora-32, clang)	8m 6s
build-test (opensuse-leap, gcc)	9m 4s
build-test (opensuse-leap, clang)	7m 5s
build-test (ubuntu-22.04, gcc)	8m 40s
build-test (ubuntu-22.04, clang)	9m 23s
build-test (alpine-3.15, gcc)	7m 39s
build-test (alpine-3.15, clang)	7m 39s
test-fuzz	3m 16s
test-no-crypto-build	1m 58s
test-mbedtls (ubuntu-20.04)	4m 14s
test-mbedtls (ubuntu-22.04-mbedtls-3.1)	4m 32s
test-tcti-config	26m 7s
	2h 37m 21s

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