separate script for running stats etc

[tevpg]

A separate script that could run (e.g.) summary stats. This script would take a fileglob or list of logfiles on command line and be able to process multi-days stats.

This might or might not also provide the stats function that (main) uses -- i.e. (main) would import and use this for its reporting

presumably this could also do the other kinds of reporting:

• log reporting style
• extra stats (high-water, etc)
• diary style (everything, in order) <-- this one seems likely unnecessary

[tevpg]

I now think this is unneccessary, as the in-tracker logic is so tied up with print formatting, and because they all assume same-day stuff. Closing this issue