add stats for errors

[dex2000]

there is warning and unprettified in the stats-diagram, but errors are missing

[ypid]

Everything which is not parsed are errors. This could be added about it would only be the inverse of the already present "Parsed values in %". For "Parsed values" it could be interesting on the other hand …

[dex2000]

Mhh. Understand.
But the "inverse" graph (as duplicate/adding) is imho better to catch as the parsed-graph. (Me for myself use never the parsed-graphs to check for some changes)

[ypid]

Sure. This should be a trivial enhancement. I have not looked into the stats for some time. Not sure yet when I come to it. I would try to do all the open in a row.