~jaro/balkon

ref: 390d2fb8a92bd57a895cd02347c6ee33a9a4e170 balkon/test/Data/Text 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.