~jaro/balkon

ref: 8ec0fe09ec568b7e5309df9dc37cd3c0f7635283 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.