~jaro/balkon

ref: 9e3b0ec7fd4a92e3d2dba81cd00dadc4dfe4006c 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.