Merge branch 'feature/564-routing-api' of https://git.fitko.de/fit-connect/sdk-dotnet into feature/564-routing-api

# Conflicts:
#	BasicUnitTest/SecurityEventTokenTests.cs
#	E2ETest/EndToEndTestBase.cs
#	FitConnect/Models/FitConnectEnvironment.cs
#	FitConnect/Models/SecurityEventToken.cs
#	FitConnect/Properties/AssemblyInfo.cs
#	FitConnect/Subscriber.cs
#	IntegrationTests/Subscriber/SubscriberTestUnHappyPath.cs