Miscellaneous lazy preprocessor improvements

[bouweandela]

Description

Various improvements to the preprocessor functions related to handling lazy data.

• Avoid inserting broadcasted numpy arrays into Dask graph when applying masks
• Always specify the target chunks when broadcasting
• Avoid huge chunks with derived coordinates Auxiliary coordinates created by HybridPressureFactory have huge chunks SciTools/iris#5457
• Ensure correct chunktype for rolling window operations Regridding produces wrong chunktype for lazy masked arrays SciTools/iris#5988

Related to #674

Link to documentation:

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 94.66%. Comparing base (a328578) to head (a4139bf).

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2520      +/-   ##
==========================================
- Coverage   94.66%   94.66%   -0.01%     
==========================================
  Files         251      251              
  Lines       14287    14296       +9     
==========================================
+ Hits        13525    13533       +8     
- Misses        762      763       +1     

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[valeriupredoi]

@bouweandela this is a lovely PR - did you want to still work on it? It's been a while since it's been sitting out, let's get it in if you done working on it 🍺

[bouweandela]

It's ready for review. I would like to add more tests, but I'm not sure when I'll have time to do that, so maybe it's better to just go ahead.