Feature: pedestrian[speed] in isoline() #175
Description
Expose pedestrian[speed] param through isoline()
Would it be possible to expose (through the isoline() function) the pedestrian[speed] param that the isoline-routing-api seems to accept?
https://www.here.com/docs/bundle/isoline-routing-api-developer-guide-v8/page/topics/use-cases/pedestrian-isoline.html
It would be helpful to use herer for isoline calculation for other population sectors, like elders or disabled, so that we (3rd party public administrations, for instance) can adapt some strategies, using the hereR package, to take into consideration their adapted walking speeds, to reach some public facilities, etc.
Thanks in advanced for considering it!