feat(codecarbon) add raspberry support

[prmths128]

Add support for rpi power metrics (from rpi tools, using vcgencmd pmic_read_adc)

[inimaz]

🙌 This would be very nice to have @prmths128, does it work?

[inimaz]

Hello @prmths128. Can this be merged? See also #791 if there is any overlap. @benoit-cty can you check?

[codecov]

Codecov Report

❌ Patch coverage is 31.32530% with 57 lines in your changes missing coverage. Please review.
✅ Project coverage is 90.61%. Comparing base (e3171e8) to head (28be34c).
⚠️ Report is 3 commits behind head on master.

Files with missing lines	Patch %	Lines
codecarbon/external/hardware.py	25.00%	36 Missing ⚠️
codecarbon/core/resource_tracker.py	35.71%	9 Missing ⚠️
codecarbon/emissions_tracker.py	18.18%	9 Missing ⚠️
codecarbon/core/hardware_cache.py	62.50%	3 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #797      +/-   ##
==========================================
- Coverage   91.55%   90.61%   -0.95%     
==========================================
  Files          49       49              
  Lines        5082     5179      +97     
==========================================
+ Hits         4653     4693      +40     
- Misses        429      486      +57     

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