Creating an instance of the maze

[Koldar]

AS a developer
I WANT a working graphical instance of a maze
BECAUSE in this way I test my code against a working maze instance and I can feel good by seeing something

After completing #4 , we need to create a concrete instance of the maze. This maze can be used to test other stuff (like the algorithm laying down the props). When you complete this task, you should have a complete maze ready to be used as testing ground.

For example the test maze might be something like this:

START -> B -> C
B -> D -> C
C -> E -> F ->B
F -> GOAL

where each node is a room, each of it having a particular rectangular shape with its dimensions