Add base documentation for evp_test tool #93

Job	Run time
basic_clang	5m 44s
address_ub_sanitizer	10m 51s
basic_gcc	5m 51s
check_docs	1m 1s
check_update	1m 19s
check-ansi	2m 36s
enable_non-default_options	4m 53s
full_featured	6m 12s
fuzz_tests	3m 8s
memory_sanitizer	22m 8s
minimal	2m 37s
no-deprecated	5m 20s
non-caching	15m 50s
no-shared-macos (macos-13)	9m 2s
no-shared-ubuntu	4m 31s
no-shared-macos (macos-14)	4m 30s
self-hosted	0s
threads_sanitizer	5m 28s
external-test-cf-quiche	3m 49s
external-test-pyca (1.51.0, 3.9)	7m 1s
external-tests	11m 47s
legacy	4m 36s
no-legacy	5m 53s
out-of-readonly-source-and-install-macos (macos-13)	11m 40s
out-of-readonly-source-and-install-macos (macos-14)	7m 39s
out-of-readonly-source-and-install-ubuntu	7m 34s
	2h 51m 0s

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