`spool` feature sends all screen i/o to a logfile

[tevpg]

spool feature

What

All user input and all system output to screen is echoed to a logfile, presumably in the PUBLISH directory, for support and usability analysis. SPOOL in tagtracker_config sets default Possibly use a spool on|off command

How:

• use a logger https://stackoverflow.com/questions/13733552/logger-configuration-to-log-to-file-and-print-to-stdout
• redirect in python https://stackoverflow.com/questions/24204898/python-output-on-both-console-and-file/24206109#24206109
• redirect at O/S (e.g. would tee work?)

Comment

The very simplest way to do this is to redirect using tee in the O/S, e.g.: python3 tagtracker.py | tee <logfile> Downsides are:

• not cross-platform
• output is full of escape sequences
• users's input is not captured

But golly, talk about simple

[tevpg]

Done as part of #85 but only way to enable right now is in config file(s)