Use/incorporate sfdLib to load FontForge fonts

[khaledhosny]

A while ago I wrote some Python code to convert FontForge fonts to UFO (because native UFO export in FontForge was not always up to the task). I used it to migrate a few fonts from FontForge but I no longer use it. I moved ownership to ctrlcctrlv and it currently lives at https://github.com/MFEK/sfdLib.py but does not seem to have any activity since the initial move.

Babelfont seems to have incomplete SFD support, and while sfdLib is not complete either, it supports more SFD things and especially layout tables.

[simoncozens]

Thank you, this is great. One of the goals of babelfont is to have a very low dependency set, so given that there hasn't been much development of it since the transfer, I may well just incorporate the code into babelfont.

I wasn't aware of this module and it will really help with a few projects we have at the moment...

[simoncozens]

I've had a little look at this, and done a bit of light refactoring just to help me understand it. I think it will need some work to separate out the FontForge parsing and the UFO generation parts. But it looks really good.