sqlite3: store more information

Signed-off-by: Markus Pargmann <mpargmann@allfex.org>
Add initial generic interactive plotter

Signed-off-by: Markus Pargmann <mpargmann@allfex.org>
Plot watermark and bugfixes

Signed-off-by: Markus Pargmann <mpargmann@allfex.org>