~jaro/balkon

ref: 9770e95e2ea1dff02a80a310c94a2fa7389114d5 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.