Investigate impact of using presets with minimap2

[lcoombe]

I saw that currently we aren't using any presets for minimap2 mappings:
https://github.com/bcgsc/goldrush-edit/blob/0cf23889ee9fe7854e55c3e8a03eb6cb8df7d98d/scripts/goldrush-edit-make#L56
It would be interesting to do some tests to see if setting -x map-ont has any impact on the final polishing

[warrenlr]

nice catch