Add min max

[quentinblampey]

Hello @flying-sheep @Zethson,

As mentioned in #112, I added support for min/max, but I'm unsure about my implementation, notably regarding code quality:

• The code is highly similar to the sum function, but it has some minor differences due to the fact that the min/max operations don't use the dtype argument. I think I could potentially make a function that is generic enough to handle all these "simple" operations at once, but I'm worried it would become too abstract and complex to read/maintain. What do you think?
• Two functions (normalize_axis and get_shape) are shared for sum and min/max, so I wanted to check with you where we should move them. E.g., I can create stats/_utils.py?
• The docs and tests are still missing, but I want to first check with you the above point and then I'll add these

Closes #112

[codecov]

Codecov Report

❌ Patch coverage is 28.37838% with 53 lines in your changes missing coverage. Please review.
✅ Project coverage is 85.62%. Comparing base (6645ead) to head (ddc450b).
⚠️ Report is 3 commits behind head on main.

Files with missing lines	Patch %	Lines
src/fast_array_utils/stats/_min_max.py	27.94%	49 Missing ⚠️
src/fast_array_utils/stats/__init__.py	33.33%	4 Missing ⚠️

❗ There is a different number of reports uploaded between BASE (6645ead) and HEAD (ddc450b). Click for more details.

HEAD has 1 upload less than BASE

Flag	BASE (6645ead)	HEAD (ddc450b)
	6	5

Additional details and impacted files

@@             Coverage Diff             @@
##             main     #116       +/-   ##
===========================================
- Coverage   98.32%   85.62%   -12.70%     
===========================================
  Files          17       18        +1     
  Lines         417      494       +77     
===========================================
+ Hits          410      423       +13     
- Misses          7       71       +64     

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[codspeed-hq]

CodSpeed Performance Report

Merging #116 will not alter performance

_{Comparing quentinblampey:minmax (ddc450b) with main (f2102e0)}

Summary

✅ 160 untouched benchmarks