[evlatests] Antsol logs

[Barry Clark]

For convenience in diagnosing when problems started, I have started
having ANTSOL record its antenna based solutions.

They are found in files named
/home/mchost2/evladata/itc/<year>/<month>/<day>-<proposalcode>.GN
for instance
/home/mchost2/evladata/itc/2009/04/01-SYSSTA.GN
These files are organized for easy use of grep.  For instance
grep XA /home/mchost2/evladata/itc/2009/04/01-AK706.GN | more
Will let you look at the amplitude and phase behavior of IF A
at X band for the calibrators in this project.  Some calibrators
are too weak for reliable solutions in a single integration,
which is how antsol works.  Therefore, for a careful investigation
you will need to load stuff into AIPS, but a quick look at
this file may be all you need in some cases.