Support the AMQP which is based on Rabbitmq in Ali Cloud

[WillPhoenixLiu]

When I connected to the AMQP queue, I need to setup the following 2 options. So I add them in the RabbitMQOptions.

The 2 options:

public IList<AuthMechanismFactory> AuthMechanisms { get; set; }
public bool TopologyRecoveryEnabled { get; set; }

I was trying to create a PR, but I got request failed with status code: 403.

[yang-xiaodong]

Hello, we have improved RabbitMQOptions to provide extensions option to configure the client original configuration, you can using like this:

x.UseRabbitMQ(o =>
{
    o.HostName = "localhost";
    o.ConnectionFactoryOptions = opt => { 
        //rabbitmq client ConnectionFactory config
    };
 });

[yang-xiaodong]

Fixed in v2.5.1