feat(collections/unstable): Iterable argument in chunk()

[Liam-Tait]

Create an unstable version of collections chunk()

This version supports both arrays and iterables. The existing implementation for arrays is essentially a branch in this new api for two reasons.

• Chunk previously counted empty array values as an part of the chunk, removing this and chunking by non-empty values would make this a breaking change. There is a test case for this.
• The array implementation is generally faster (did some benchmarking locally) which IMO is likely the common use of this api.

#5470

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 96.24%. Comparing base (b3e1ebb) to head (a39f46c).

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #5925      +/-   ##
==========================================
- Coverage   96.25%   96.24%   -0.01%     
==========================================
  Files         489      489              
  Lines       39457    39463       +6     
  Branches     5824     5827       +3     
==========================================
+ Hits        37980    37983       +3     
- Misses       1433     1436       +3     
  Partials       44       44              

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[kt3k]

Thanks for updating! LGTM