feat: Kafka Consumer Package

[oss92]

Which problem is this PR solving?

Closes #260

Short description of the changes

We've had a few discussions about the best way to move forward with the task; the key outcomes were

• Kafka's streaming logic is different than the message broker logic of AMQP and SNS/SQS. Trying to contain both under a single abstraction is not ideal.
• Instead of maintaining the current abstraction, we've decided to introduce a new Kafka package with support for batching and
• This new package is more transparent in regards to Sarama; exposing more its internals, plus with QoL helpers for the end-users.

Checklist

• Component
• Retries
• Batching
• Raw Sarama Message
• Raw Sarama Config
• Update Sarama
• Failure strategy
• Metrics
• Tracing
• Unit tests
• Integration tests

[codecov]

Codecov Report

Merging #342 (b42e1f6) into master (7f52baf) will increase coverage by 0.84%.
The diff coverage is 86.69%.

@@            Coverage Diff             @@
##           master     #342      +/-   ##
==========================================
+ Coverage   72.66%   73.50%   +0.84%     
==========================================
  Files          71       74       +3     
  Lines        3859     4077     +218     
==========================================
+ Hits         2804     2997     +193     
- Misses        941      963      +22     
- Partials      114      117       +3     

Impacted Files	Coverage Δ
component/kafka/component.go	84.74% <84.74%> (ø)
component/kafka/kafka.go	86.66% <86.66%> (ø)
component/kafka/option.go	100.00% <100.00%> (ø)
component/sqs/component.go	87.77% <0.00%> (+1.11%)	⬆️
component/async/kafka/simple/duration_client.go	96.49% <0.00%> (+3.50%)	⬆️

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[mantzas]

LGTM. I am eager to start to use it. Very nice work.

[gmaz42]

This is solid work, thanks! Looking forward to use it ☺️

I tried to think how to make some loops simpler but could not think of anything better.

🥇

[tpaschalis]

🚢 nice work! Looking forward to toying with it!