~jaro/balkon

ref: 0b2a78cbf854bd0ef02be2ee5cd1aa65315eab1a balkon/src/Data/Text/ParagraphLayout/Internal/WithSpan.hs -rw-r--r-- 1.2 KiB 
Move BiDi Level to separate module.

Allow extracting ResolvedBox from WithSpan.

Separate WithSpan for sharing with other modules.