tests: Create and remove socket directories.
* tests/openpgp/defs.scm (start-agent): Move function here and create the socket directory prior to starting the agent. (stop-agent): Move function here and remove the socket directory. * tests/openpgp/finish.scm: Adapt. * tests/openpgp/setup.scm: Likewise.
- Signed-off-by: Justus Winter <justus@g10code.com>