5cc0115b9c
- Some commands only access the cert or key store after they do a lot of work. If the cert or key store is disabled, this is annoying. - Change `sq key generate`, `sq cert import`, `sq network search`, `sq network keyserver search`, `sq network wkd search`, and `sq network dane search` to error out early if they will save something to the key store or the certificate, and it is disabled. - Fixes #264.