RFC: hiking_technique key (or a better name!) to describe movement on paths by hikers

On a tangential note, there was some brief discussion on having things be a way or node. Vey short sections that bump up difficulty of movement should probably be tagged as stairs or obstacle=*.

On a very well used trail (part of a famous short backpacking loop, and used by fisherman, day hikers, and other backpackers many dozens of people a day in the summer) there’s more of those f$%#king stock steps. My partner’s feeling on them:

That section could be tagged as stairs and is a bit clearer as they cover the entire path.

Here’s a different section of the PCT with mellower stonework

Nearby there’s some simple T2 / hard T1 terrain for a brief period. There’s often rocks filled in areas that get a lot of water / would erode out (or are just rocky), but these tend to be fairly localized.

You also get naturally occurring obstacles that act similarly. These should probably just be marked as nodes vs part of the way.