New port: x11-fonts/blackout

Blackout is a stencil sans-serif font. Its author describes it in the
following words: "Eats holes for breakfast lunch and dinner. Inspired by
filling in sans-serif newspaper headlines. Continually updated with coffee
and music. Makes your work louder than the next person's."

The font comes in three styles: Midnight (solid), 2AM (reversed), & Sunrise
(stroked).

WWW: https://www.theleagueofmoveabletype.com/blackout

PS: This is the font featured in the official 36C3 style guide.