Provide a pomodoro timetable display module.

[elkorn]

• Each pomodoro is a block within a calendar-like timetable.
• Each found tag has to have assigned a color.
• Colors are being mixed for a pomodoro based on which tags it has.

[elkorn]

This should be a completely separate module. Maybe even a separate GH repository.

Probably I should base it on node-webkit.

[elkorn]

This will be a plugin.