test: add 25 missing test files and fix 2 suite naming issues
E605 fixes (25 new test files):
- monopam: test_lint (Lint module types, issue construction)
- irmin: test_irmin (Hash roundtrips, commit types, Tree API)
- ocaml-tls: test_core, test_state, test_x509_eio
- ocaml-x509 (19 files with RFC test vectors): pem, distinguished_name,
host, algorithm, certificate, validation, extension, general_name,
key_type, public_key, private_key, signing_request, crl,
authenticator, asn_grammars, ocsp, p12, rc2, registry
E617 fixes (2 naming): module_alias_parsing, warning_parse