Blender Git Loki

Bevel: Z-Up Custom Profile Orientation

When beveling architectural objects like baseboards or crown mouldings that
may consist of multiple islands, it's useful if the orientation is at least
conistent.

This changes the arbitrary decision of how the orientation should start at a
chain beginning to use the highest side of the profile in the Z direction.

Reviewed By: howardt

Differential Revision: https://developer.blender.org/D6946