[dev] [st] morefonts patch

Hey everyone,

I was looking around the other day and I found a really nice font
(tamsyn), but it seemed that st wouldn't work with it because it didn't
have a proper name.

The creator should update the font soon to include such a name, but I
also wrote a patch that allows st to load the font without that proper
name.

It's mostly copied from dmenu, since that was loading the fonts the same
way.

I hope it's ok and I didn't miss this already existing.

Greetings,
Tom