Initial refactor work to allow traineeships
Merge branch 'master' of https://github.com/Valtech-NAS/Beta

Conflicts:
	src/SFA.Apprenticeships.Web.Candidate/SFA.Apprenticeships.Web.Candidate.csproj
Creating Apply view
Merge branch 'master' of https://github.com/Valtech-NAS/Beta

Conflicts:
	src/SFA.Apprenticeships.Web.Candidate.AcceptanceTests/Pages/Traineeship/Overview.cs
Refactoring Application model to ApprenticeshipApplication model specialisation
Fixing unit tests.