Adds authorization services to the specified <seecref="T:Microsoft.Extensions.DependencyInjection.IServiceCollection"/>. Also initializes the app groups.
</summary>
<paramname="services">The <seecref="T:Microsoft.Extensions.DependencyInjection.IServiceCollection"/> to add services to.</param>
<paramname="appGroups"></param>
<returns>The <seecref="T:Microsoft.Extensions.DependencyInjection.IServiceCollection"/> so that additional calls can be chained.</returns>