Added Tests for Scorer

Also contains test for NSubstitute that can be removed
Merge branch 'GarysScorer'
Merge branch 'master' of https://github.com/vmoore61/WeBowler

Conflicts:
	WeBowler.Tests/WeBowler.Tests.csproj
	WeBowler/WeBowler.csproj
	WeBowler/WeBowler.sln