Add batch/non-interactive CLI mode to Perl and Python ssl-admin

[ecrist]

Summary

• Adds full non-interactive batch mode to both the Python and Perl ssl-admin implementations
• Introduces 15 subcommands mapping to every interactive menu item (create-sign, revoke, gen-crl, server, options, etc.) plus the legacy crl alias
• Central yn_prompt_or_default() helper returns preset values in batch mode or falls back to interactive prompts — minimal diff against existing menu logic
• Sleeps and recursive main_menu() calls are suppressed in batch mode so scripts exit cleanly
• Python: uses argparse with subparsers; parser built once and reused for --help and dispatch
• Perl: uses Getopt::Long with positional command extraction via splice

Example usage

ssl-admin create-sign --cn jdoe
ssl-admin revoke --cn jdoe
ssl-admin server --cn webserver --overwrite
ssl-admin options --days 730 --size 4096
ssl-admin gen-crl
ssl-admin view-crl

Test plan

• Run ssl-admin --help and ssl-admin create-sign --help — verify help text prints without requiring a config file
• Run ssl-admin create-sign --cn testuser against an initialized CA directory — verify cert is created non-interactively
• Run ssl-admin revoke --cn testuser — verify revocation and CRL regeneration
• Run ssl-admin gen-crl — verify CRL is updated and script exits 0
• Run ssl-admin create-sign --cn existing when cert exists without --overwrite — verify non-zero exit with clear error
• Verify interactive mode is unchanged (no arguments → menu appears as before)
• Run existing pytest suite: cd tests && pytest -v

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