Turn off coverage for certain methods.
Don’t create initial state on interface creation;

This puts data into the buffer which leads to unpredictable output and horrible tests which pass for the wrong reasons. Expect more commits to fix this accidental issue.
Fix compositors output for multi-line compositions.
Initial state format for compositor was incorrect.
Slight tidy up.
Pad content properly if it doesn’t fill available lines.
Add more control codes;

- Add blink_off.
- Add bold_off.
- Add positive (opposite inverse/negative/reverse).
- Add underline_off.
Fix tests, notably for Compositor;

Compositor was still displaying the wrong behaviour. It wasn’t iterating the correct number of lines from the output provided.
Update tests to reflect termination of styles and the effects.