34 - Femah.Examples - Push Web.Additionator example app to Azure website for demonstration

34 - Femah.Examples - Push Web.Additionator example app to Azure website for demonstration
- Added clone of basic Powershell build scripts used by the Femah
library
- Added NUnit and NUnit.Runners NuGet packages, and modified tests
accordingly

Note - Also includes @hotstone changes which have already been merged (which I think I forget to sync with my fork prior to committing)
- Renamed tests file from SomeClassTests to ArithmeticTests.
- Removed references to 'SomeApplication' from namespaces - replaced with 'Femah.Examples.Additionator'