Is your feature request related to a problem? Please describe.

IConfigureOptions<T> allows you to move your configuration code to a separate class. However, it cannot be used with certain API's which require us to pass an Action<T>:

IServiceCollection AddStackExchangeRedisCache(this IServiceCollection services, Action<RedisCacheOptions> setupAction)
IServiceCollection AddHsts(this IServiceCollection services, Action<HstsOptions> configureOptions)

This is not an exhaustive list, there may be others.

Describe the solution you'd like

All API's in ASP.NET Core should be consistent and allow us to configure them using IConfigureOptions<T>. The following overloads should be added:

IServiceCollection AddStackExchangeRedisCache(this IServiceCollection services)
IServiceCollection AddHsts(this IServiceCollection services)