Actually add ae.sc, oe.sc and oslash.sc to lookups
Closes https://github.com/indestructible-type/Besley/issues/19.
Note: Assumes merger of https://github.com/indestructible-type/Besley/pull/31. Merge https://github.com/indestructible-type/Besley/pull/31 first then this.
I think your issue is fixed @sigurdhasle

Thank you! My issue is (almost) fixed now! Now I even think i understand that «ae.sc, oe.sc and oslash.sc» means «small capitals æ, œ and ø». (Œ is the French version of the Norwegian ø.) The small caps are correct and beautiful now. If you can correct the small caps italics, too, I will be completely happy.

are you sure? even as of 0b1cc55b7eeeed3bf5c048d23aaf4f57ade802a4?
also i don't recommend trying to use smallcaps in narrow or condensed, they're unsupoprted still :)

There it is! Perfect! Thank you very much! (And I will avoid to use small caps in narrow or condensed.)
