Add super stream producer

[Gsantomaggio]

SuperStreamProducer

---

New struct to create the super stream producer:

The main features are:

• RoutingStrategy interface

• HashRoutingStrategy struct

• KeyRoutingStrategy struct

• SuperStreamProducer struct

• PartitionContext struct

Example:

      superStreamProducer, err := env.NewSuperStreamProducer(superStreamName,
		stream.NewSuperStreamProducerOptions(
			stream.NewHashRoutingMurmurStrategy(func(message message.StreamMessage) string {
				return message.GetApplicationProperties()["myKey"].(string)
			})).SetClientProvidedName("my-superStreamProducer"))
	CheckErr(err)

Here the full code example

[codecov]

Codecov Report

Attention: Patch coverage is 89.18919% with 32 lines in your changes are missing coverage. Please review.

Project coverage is 83.79%. Comparing base (34fd584) to head (1c042cb).

Files	Patch %	Lines
pkg/stream/super_stream_producer.go	87.35%	13 Missing and 9 partials ⚠️
pkg/stream/environment.go	71.42%	3 Missing and 3 partials ⚠️
pkg/stream/client.go	93.33%	1 Missing and 1 partial ⚠️
pkg/stream/producer.go	77.77%	1 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #288      +/-   ##
==========================================
+ Coverage   83.43%   83.79%   +0.36%     
==========================================
  Files          24       25       +1     
  Lines        3350     3610     +260     
==========================================
+ Hits         2795     3025     +230     
- Misses        402      419      +17     
- Partials      153      166      +13     

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[DanielePalaia]

It looks good to me after the pairing session. Just added a few minor comments!

[DanielePalaia]

Can this commented rows be deleted?

[Gsantomaggio]

Will merge after pairing with @DanielePalaia