[Feature Request] Add options for Walking Navigation

[Mannshoch]

Please add following Options to create an as good as possible route for walking/hiking.

• Don't use Streets without side walks if the speedlimit ist higher than XX km/h
• Prefer foot walk
• highlight drink water stations and restaurants

[andrasfuchs]

As an additional note, this would be great for cycling as well:

• Prefer dedicated bicycle lanes/roads when possible (even if that's a little slower)
• Highlight drink water stations and restaurants (and maybe tourist attractions)
• Allow the user to strictly forbid non-cycleway routes if the speedlimit is higher then XX km/h on that street