added the box expansion

src/cards/en/box-expansion.yml

@@ -0,0 +1,28 @@
+name: Box Expansion
+authors:
+  - BixelPitch
+type: official
+language: en
+black_cards: []
+white_cards: 
+  - The biggest, blackest dick
+  - A box
+  - A box within a box
+  - A boxing match with a giant box
+  - A box of biscuits, a box of mixed biscuits, and a biscuit mixer
+  - An outbreak of smallbox
+  - The Boxcar Children
+  - A world without boxes
+  - Boxing up my feelings
+  - A box-shaped man
+  - A man-shaped box
+  - Something that looks like a box but turns out to be a crate
+  - A box that is conscious and wishes it weren't a box
+  - An alternate universe in which boxes store things inside of people
+  - The J15 Patriot Assault Box
+  - A box without hinges, key, or lid, yet golden treasure inside is hid
+  - Two midgets shitting into a box
+  - A falcon with a box on its head
+  - Being a motherfucking box
+  - Former President George W Box
+  - Pandora's vagina