Do not mix test result with progress lines.

This makes parsing of the results easier. Fixes bug#1400.

• tests/openpgp/defs.inc (progress_cancel, progress_end)

(progress_new): New.

• tests/openpgp/conventional-mdc.test: Use progress functions
• tests/openpgp/conventional.test: Ditto.
• tests/openpgp/encrypt-dsa.test: Ditto.
• tests/openpgp/encrypt.test: Ditto.
• tests/openpgp/sigs.test: Ditto. --

The new output style is now:

    > MD5 SHA1 RIPEMD160 SHA256 SHA384 SHA512 SHA224 <
PASS: sigs.test

or if the test fails:

    > MD5 SHA1
sigs.test: ooops
FAIL: sigs.test