Request: Option to always show all contigs

[alexweisberg]

Thanks for writing this tool, it works very well. I was wondering if it would be possible to add an option such that all contigs (query and ref) are shown, even if they don't map. I know the ng option can be increased, but this can be kind of fiddly to find the right value. It would be nice if there were a flag to set that automatically just shows everything, even if it would be clunky looking. Thanks!