Update fipsalgtest.pl to cope with changes in file names and format

Update fipsalgtest.pl to cope with changes in file names and format

X9.31 tests need to look in files for '9.31'
RSA-PSS tests may contain additonal text as well as "salt len: n".
We now just look at the start of a filename for a match.

Separate ECDSA2 test list.

Reorder test to handle new formats: for example PQGVer for DSA2 can be
detected based on file format but if this fails revert to PQGVER.

For future debugging add a --debug-detect option which prints out more
details of the test detection including the first few lines of each
request file.
Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Steve Marquess <marquess@openssl.org