~jaro/balkon

ref: 5a89c6f79dec94bfd7f56e00b835cbdd6959ad6a 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.