If there are no defined axes, use the available names from locations in the document. New axes are tagged with "_" as first letter. There is no guarantee that the guessed axes have the same dimensions as the originals.
- aims to do work the same way as mutatorMath.ufo.document
- generate all instances as UFO
- handle glyph masters, info, kerning, lib
More testing is needed.
- independent reader / writer object for designspace documents.
- imports and exports easy to subclass objects for instance, source and axis data.
- roundtrips
- intended to be compatible with use in MutatorMath, Superpolatpor and varlib.
