consider implementing --quick-gen-key commands (for test suites)

GnuPG is embedded in a lot of test suites, particularly for tools that have a dependency on GnuPG. Since the introduction of the --quick-generate-key (etc) commands, some of these test suites use those commands for a more stable environment setup, etc.

Arguably, these test suites should just use some flavor of sop to generate the key, but then they have to import it too. So, either we should offer patches to help these test suites switch over to sop, or the chameleon should implement --quick-generate-key and friends.