add RecursiveIteratorAggregateIterator

[mastir]

One more missing iterator.

I made it to travel deep tree Traversable structure without RecursiveIterator interface

[what-the-diff[bot]]

PR Summary

• Introduction of New Recursive Iterator Class A new class called 'RecursiveIteratorAggregateIterator' has been created and included in a new file. This class is designed to handle how lists or other sets of data are stepped through, especially if these sets contain other nested sets.
• Unit Test for New Recursive Iterator Class To validate the functionality of the new Recursive Iterator class, a series of unit tests have been created and captured in a file called 'RecursiveIteratorAggregateIteratorTest'.
• Expansion of Unit Test to Cover New Cases The already-existing 'RecursiveIteratorAggregateIteratorTest' was updated to include a new case called 'testRecursiveIteratorAggregateIterator'. This additional test is designed to ensure that the new class correctly handles a series of nested objects.

[drupol]

hey hi first contributor!

Thanks for the PR! Can you please fix the static analysis issue and code style?

Once it's done, I'll review it manually.

Thanks again!

[drupol]

Does this PR is similar to https://github.com/loophp/iterators/pull/61 ?

[mastir]

Yes, #61 has same logic, but for different structeres. this iterator provides recursive iteration over tree-like structure of objects implementing Itrator or IteratorArgregate interface. RecursiveIterableAggregate in #61 adds iteration over traversable tree-like structures (like deep array or array of object tree).

[github-actions[bot]]

Since this pull request has not had any activity within the last 5 days, I have marked it as stale. I will close it if no further activity occurs within the next 5 days.