Changed the way the fractal image is generated and displayed such that a graphics context and Canvas class is used, and added button to show and hide the sidebar.

Began implementing level of detail system by correlating the zoom level determined by chaos game image view with what subsection of the canvas should be populated with new points.

# Conflicts:
#	src/main/java/edu/ntnu/stud/chaosgame/controller/game/ChaosCanvas.java
#	src/main/java/edu/ntnu/stud/chaosgame/controller/game/ChaosGame.java
#	src/main/java/edu/ntnu/stud/chaosgame/view/ChaosGameGUIView.java

Added some getters to controllers and created some of the tests for ChaosGame not involving observers.

Improved putPixel()-method to account for negative indices, which previously cause error when trying to produce Barnsley fern.

Created ChaosGameDescriptionFactory and added 5 files containing data. Currently they containthe same data, this should be changed later.