regarding error reports of functions: write error messages to the sd card

[Halbelunge]

If some kind of error occors: write it (if still possible) to the next entry of the .csv or in an extra error_report.csv

[amandel]

Redirecting the log can be done via esp_log_set_vprintf on the other hand we want to reduce write access to the SD card. Adding the data to the usual csv can cover already at least some aspects.