SimulationEngine v1

SimulationEngine:
 - New constructor.
 - New methods: getBestScore(), getBestScene() & toString().
 - Now creates scenes/ folder to save all scenes files.
 - Renamed field “simulationFolder” to “simulationPath” and
 - Deleted copy simulation files commands.
 - New parameters to create scenes using simulationPath
 - [provisional] run() method only does 5 iterations to debug.

Scene:
 - Now, Scene’s sceneDir field sets to sceneDir instead of mapFile.
 - New comments added.

Simulation:
 - Class constructors uses additionalFile if it is set.
 - Updated SumoProperties.get.

SumoProperties:
 - Removed classLoader parameter in get() method. Now, it uses
SumoProperties.class

BusRouteGen:
 - Updated class to use SimulationEngine.
 - Nos uses SimulationEngine to generate scenes instead of create just
1 scene.