~jaro/balkon

ref: 22f5b8331b78ed7f4bf318a36198a6ad4dd127fd 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.