Introduce Pathless / Alpine Path / Off-Path?

[Duja]

Yeah, to humbly quote myself from another thread:

@Duja

There are two related, but distinct use cases, which we are in danger of subsuming under one skunked tag. Let’s call them by their originally proposed names:

• highway=scramble: a route that requires use of hands and/or specialized equipment […]
• highway=pathless: a route which is not visible on the ground and is only drawn as a suggested connection between endpoints[…]

While I think that both of those types should be excluded from definition of path, I’m unsure how best to approach classification, since trail visibility and difficulty are generally orthogonal.