~jaro/balkon

ref: e1e4bf7ca4771d7ce21ca1398ee1478901c3001d balkon/test/Data/Text/ParagraphLayout d---------
Upgrade Fragment to contain pen position.
Clean up ParagraphConstruction.
Use infix operators for constructing test data.
Implement "plain" interface.
Create "plain" interface.
Add module for working with rectangle coordinates.
Add explicit scale to test font.
Separate tests by module.