Set the zellkonverter verbosity option
setZellkonverterVerbose(verbose = TRUE)The value of getOption("zellkonverter.verbose") invisibly
Running setZellkonverterVerbose(TRUE) will turn on zellkonverter
progress messages by default without having to set verbose = TRUE in each
function call. This is done by setting the "zellkonverter.verbose" option.
Running setZellkonverterVerbose(FALSE) will turn default verbosity off.