FlowchartApplication and Shape class work: click-dragging makes a rectangle node.
Thinking of redoing this without paper.js so that I can use input elements.
Rewrote code without paper.js.
Shape Class fully works, resolved #5
Merge branch 'master' of https://github.com/Charlili/CP3-eindopdracht-2DEV2-groep3

* 'master' of https://github.com/Charlili/CP3-eindopdracht-2DEV2-groep3:
  Delete Scans_Whiteboard.zip
  Delete Structure.jpeg
  Delete Flowchart.jpeg
  Delete Flashcards.jpeg
  Delete Brainstorm.jpeg