Updates to .NET 6

[christiannagel]

Part 1 (The Language)

• Chapter 1 - .NET Applications and Tools (HelloWorld)
• Chapter 2 - Core C# (CoreCsharp)
• Chapter 3 - Classes, Structs, Tuples, and Records (Types)
• Chapter 4 - Object-Oriented Programming with C# (ObjectOrientation)
• Chapter 5 - Operators and Casts (OperatorsAndCasts)
• Chapter 6 - Arrays (Arrays)
• Chapter 7 - Delegates, Lambdas, and Events (Delegates)
• Chapter 8 - Collections (Collections)
• Chapter 9 - Language Integrated Query (LINQ)
• Chapter 10 - Errors and Exceptions (ErrorsAndExceptions)
• Chapter 11 - Tasks and Asynchronous Programming (Async)
• Chapter 12 - Reflection, Metadata, and Source Generators (ReflectionAndSourceGenerators)
• Chapter 13 - Managed and Unmanaged Memory (Memory)

Part 2 (The Libraries)

• Chapter 14 - Libraries, Assemblies, Packages, and NuGet (Libraries)
• Chapter 15 - Dependency Injection and Configuration (DependencyInjectionAndConfiguration)
• Chapter 16 - Diagnostics and Metrics (LoggingAndMetrics)
• Chapter 17 - Parallel Programming (Parallel)
• Chapter 18 - Files and Streams (FilesAndStreams)
• Chapter 19 - Networking (Networking)
• Chapter 20 - Security (Security)
• Chapter 21 - Entity Framework Core (EFCore)
• Chapter 22 - Localization (Localization)
• Chapter 23 - Tests (Tests)

Part 3 (Web Apps and Services)

• Chapter 24 - ASP.NET Core (AspNetCore)
• Chapter 25 - Services (Services)
• Chapter 26 - Razor Pages and MVC (RazorAndMVC)
• Chapter 27 - Blazor (Blazor)
• Chapter 28 - SignalR (SignalR)

Part 4 (Windows Apps)

Windows apps are updated with #81