Incorporate iD orthogonalization improvements

[bryceco]

The orthogonalizing algorithm is based on iD's similar feature. We should ensure that changes in iD are reflected in Go Map!! https://github.com/openstreetmap/iD/pull/5999

[tordans]

One of the improvements in iD based on the issue that you linked is the ability to square and straighten at lot more different segments, which where improvement that I really liked. Especially

• Square roads that then have 90° angles
• Straigten and square multi selected ways and areas
• Straighten nodes that are not a way but multi selected

The last two would need a way in GoMap to multi select nodes. Which I find a challenging idea in a mobile UI – but at the same time might not be that complex with some multitouch gestures.

Let me know if part of this should be a separate issue (or if out of scope).