~jaro/balkon

ref: 5a89c6f79dec94bfd7f56e00b835cbdd6959ad6a 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.