fix(DIExtensions): AutoMapper-Konfiguration von UserManager hinzugefügt.

- In das Hauptverzeichnis des Projekts verschoben.
 - Umbenennen in DependencyInjection

EnvelopeGenerator.Web/Program.cs

@@ -15,7 +15,6 @@ using DigitalData.EmailProfilerDispatcher;
 using EnvelopeGenerator.Infrastructure;
 using EnvelopeGenerator.Web.Sanitizers;
 using EnvelopeGenerator.Application.Contracts.Services;
-using EnvelopeGenerator.Application.Extensions;
 
 var logger = LogManager.Setup().LoadConfigurationFromAppSettings().GetCurrentClassLogger();
 logger.Info("Logging initialized!");