~jaro/balkon

ref: 034a323deb9c3858d2396406d7e22410984ba4e6 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.