Boxed AspNetCore 2.2.2

• Rename ConfigureOptions to ConfigureSingleton.

Boxed AspNetCore 2.2.1

• Rename AddOptions to ConfigureOptions.

Boxed AspNetCore 2.2.0

• Use IMiddleware interface.
• Add IServiceCollection.AddOptions extension method.

Boxed AspNetCore 2.0.0

• Upgrade to ASP.NET Core 2.1.
• Upgraded Source Link.
• Remove unused middleware and exception code.

Boxed Mapping 1.1.0

• Added Source Link support.

Boxed AspNetCore 1.1.0

• Added Source Link support.