Add Info class to the Producer/Consumer classes

[Gsantomaggio]

The call returns the Reference and Stream.
So that you know, the Reference is deprecated for the producer class and will be removed at some point. So the info.reference for the producer will also be removed.

We can add other info about the consumer and producer and the consumer in the future.

ref: #321

To get the info:

 var consumer = await Consumer.Create(new ConsumerConfig(system, "MyStream") { Reference = "consumer", });

entityInfo = consumer.Info;
Assert.Equal("MyStream", entityInfo.Stream);
Assert.Equal("consumer", entityInfo.Reference);

and also in the handler:

MessageHandler = async (sourceStream, consumer, ctx, message) =>
{
                        
    Console.WriteLine($"Consumer info Reference: {consumer.Info.Reference} ");

[codecov]

Codecov Report

All modified lines are covered by tests ✅

Comparison is base (0711e13) 92.60% compared to head (64817bc) 92.57%.

❗ Current head 64817bc differs from pull request most recent head 18132c0. Consider uploading reports for the commit 18132c0 to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #322      +/-   ##
==========================================
- Coverage   92.60%   92.57%   -0.04%     
==========================================
  Files         112      113       +1     
  Lines        9884     9963      +79     
  Branches      825      825              
==========================================
+ Hits         9153     9223      +70     
- Misses        555      562       +7     
- Partials      176      178       +2     

Files	Coverage Δ
RabbitMQ.Stream.Client/AbstractEntity.cs	100.00% <ø> (ø)
RabbitMQ.Stream.Client/EntityInfo.cs	100.00% <100.00%> (ø)
RabbitMQ.Stream.Client/IConsumer.cs	100.00% <ø> (ø)
RabbitMQ.Stream.Client/IProducer.cs	100.00% <ø> (ø)
RabbitMQ.Stream.Client/RawConsumer.cs	84.36% <100.00%> (+0.03%)	⬆️
RabbitMQ.Stream.Client/RawProducer.cs	88.35% <100.00%> (+0.04%)	⬆️
RabbitMQ.Stream.Client/RawSuperStreamConsumer.cs	94.30% <100.00%> (+0.03%)	⬆️
RabbitMQ.Stream.Client/RawSuperStreamProducer.cs	96.72% <100.00%> (ø)
RabbitMQ.Stream.Client/Reliable/Consumer.cs	100.00% <100.00%> (ø)
...MQ.Stream.Client/Reliable/DeduplicatingProducer.cs	100.00% <100.00%> (ø)
... and 3 more

... and 2 files with indirect coverage changes

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[Gsantomaggio]

FYI: #321 (reply in thread)