~jaro/balkon

ref: 87cd2d8a4d7c798ed862e9198b011bb655f1ec3f 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.