Add man_mande=cutline

[Talkless]

I thought I could use https://print.get-map.org to print custom topograhic map for hiking trip with "natural" (map, compass) navigation, but I discovered that OpenTopoMap does not render cutlines...

I would consider cutlines very important as they can be used as track/paths, and as a additional hints while navigating: https://wiki.openstreetmap.org/wiki/Tag:man_made%3Dcutline

Could you please consider adding man_mande=cutline to the OpenTopoMap tiles? Lithuanian government-based topograhic online maps does have cutlines, but they don't have all the small paths that OSM has...

Here's example of topograhic map from Lithaunian government, which has cutlikes (dashed lines covering rectangular forest areas:)

Meanwhile, OpenTopoMap while it's better to be printed to be used as "actual" physical map, it does not have cutlines: