~jaro/balkon

ref: a2d91928eca26673b19d166f2af3ee8da527df76 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.