tests: Run the OpenPGP tests using the new extended key format.
* tests/openpgp/all-tests.scm: Generalize a bit, and also add a variant that uses the new extended key format. * tests/openpgp/defs.scm (create-gpghome): Conditionally enable the new extended key format.
- Signed-off-by: Justus Winter <justus@g10code.com>