~jaro/balkon

ref: fef8a026aab8152a29cb875a599f4f9e5a3ca83b balkon/src d---------
Avoid reimplementing Data.Text.Lazy.fromStrict.
Implement "plain" interface.
Use Rect in "plain" interface.
Create "plain" interface.
Add module for working with rectangle coordinates.
Separate modules.
WIP version with WIP interface.