~jaro/balkon

ref: b36dcd9859e8d5209a08186555b8f799ad2c8b0f 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.