~jaro/balkon

ref: dfa301d6c0659e437ae66d72787a23b4393b33f2 balkon/test/Data d---------
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.