suggest:创建代理类类型时执行自定义操作。

提议，添加一个配置项，以便在创建代理类时可执行一些自定义操作，如：

``` csharp
services.ConfigureDynamicProxy({
c=>c.Interceptors.AddServiced(
m=>m.DeclaringType.Name.EndsWith("AppService"));
c.OnGenerateProxy(context=>context.TypeBuilder.SetCustomAttribute(
CustomAttributeBuildeUtils.DefineCustomAttribute(typeof(DynamicallyAttribute)););

[NonAspect]
public interface IAspectConfiguration
{
AspectValidationHandlerCollection ValidationHandlers { get; }

InterceptorCollection Interceptors { get; }

NonAspectPredicateCollection NonAspectPredicates { get; }

bool ThrowAspectException { get; set; }

IAspectConfiguration OnGenerateProxy(Action configureAction);
}

public sealed class GenerateProxyContext
{

public TypeBuilder TypeBuilder { get; init; }

public Type ServiceType { get; init; }

public Type ImplementType { get; init; }

}

```