Read oversize/regular/retired tag lists from logfile not cfg for historic data

[tevpg]

Read oversize/regular/retired tag lists from logfile

What

Save tag lists to logfile, and read them from logfile for historic data.. Also, colour codes!

How

Logic is:

• if this is historic data (not today's data) and info is in logfile, read from logfile
• else read from config files

Note: this would be made easier if the tag-config files were all in one file.

This means that reading the logfile would take place without knowing in advance whether the tags are known: so would need to first read all the tags, then lint-check them.

Also: save retired tags list in logfile, and read from logfile.

Why

The lists of oversize/regular can change from day to day and need to accompany that day's logfile info in order to have the summary data correct. However, it would be bad if tagtracker were started up to look at an older logfile and overwrote its oversize/regular info.

[tevpg]

• Addressed in tweaks bundle #123