Small update
- introduced SetBacktrackerCommand.cs and SetPrimCommand.cs commands
- added small refactorings to CommandInterpreter & ConsoleEngine
- changed saved scores file directory
Merge branch 'master' of https://github.com/stinger907/Labyrinth-5

Conflicts:
	Labyrinth5.Common/Contracts/ICommand.cs
	Labyrinth5.Common/Contracts/ICommandInterpreter.cs
	Labyrinth5.Common/Contracts/IEngine.cs
	Labyrinth5.Common/Contracts/IMazeCell.cs
	Labyrinth5.Common/Contracts/IMazeGenerator.cs
	Labyrinth5.Common/Contracts/IRenderable.cs
	Labyrinth5.Common/Contracts/IRenderer.cs
	Labyrinth5.Common/Directions.cs
	Labyrinth5.Common/Engine/CommandInterpreter.cs
	Labyrinth5.Common/Engine/ConsoleEngine.cs
	Labyrinth5.Common/Labyrinth5.Common.csproj
	Labyrinth5.Common/Save/SavedScores.txt
	Labyrinth5.Common/Scoreboard.cs
	Labyrinth5.Common/Settings.StyleCop
	Labyrinth5.Common/StyleCop.Cache