~jaro/balkon

ref: 4fda24fcf0fa3cfcd0458c15e53006d998ff8ca1 balkon/test/Data/Text/ParagraphLayout/Internal/TreeSpec.hs -rw-r--r-- 4.3 KiB 
Consolidate tree types into one.

Add required textDirection to TextOptions.

Use ResolvedBox when flattening trees.