Quick configuration policy to mark all endpoints as being durable in one line of code

[jeremydmiller]

Some notes:

Introduce back some sort of EndpointCollection as a child of JasperRuntime. That would hold the policies.

• the policies need to be evaluated when endpoints are first created
• also evaluated when one needs to be created on the fly

public interface IEndpointPolicy
{
    void Apply(Endpoint endpoint, IJasperRuntime runtime);
}

internal class LambdaEndpointPolicy<T> : IEndpointPolicy where T : Endpoint
{
    private readonly Action<T, IJasperRuntime> _configure;

    public LambdaEndpointPolicy(Action<T, IJasperRuntime> configure)
    {
        _configure = configure;
    }

    public void Apply(Endpoint endpoint, IJasperRuntime runtime)
    {
        if (endpoint is T e) _configure(e, runtime);
    }
}