~jaro/balkon

ref: e7cf323c675e1aa56e595c1a0d919fbc978b2f7f balkon/test/Data 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.