Feature request: implement `SQSFifoPartialProcessor` class

[dreamorosi]

Use Case

The Python version of Powertools for AWS features a class called SqsFifoPartialBatchProcessor class, which extends the BatchProcessor class. This class is needed because the use case of processing a batch of messages from an SQS configured as FIFO requires special handling. In the event of a failure, the whole batch must be marked as failed to maintain the order of the messages.

Solution/User Experience

Refer to the implementation found here, and specifically to the SqsFifoPartialBatchProcessor class.

Acceptance criteria

• The class covers all the features found in the reference implementation
• The class and its types are exported
• Unit tests are implemented with 100% coverage
• Classes and methods are documented via docstrings, following project's conventions as much as possible

[erikayao93]

I will be working on this soon.