Add baremetal API

[tobast]

This commit adds support for the Baremetal API.

[codecov-commenter]

Codecov Report

❌ Patch coverage is 33.33333% with 8 lines in your changes missing coverage. Please review.
✅ Project coverage is 92.92%. Comparing base (c51f54f) to head (e81fb11).
⚠️ Report is 14 commits behind head on develop.

Files with missing lines	Patch %	Lines
scaleway/apis/api_baremetal.py	33.33%	8 Missing ⚠️

❗ There is a different number of reports uploaded between BASE (c51f54f) and HEAD (e81fb11). Click for more details.

HEAD has 144 uploads less than BASE

Flag	BASE (c51f54f)	HEAD (e81fb11)
	151	7

Additional details and impacted files

@@             Coverage Diff             @@
##           develop      #36      +/-   ##
===========================================
- Coverage   100.00%   92.92%   -7.08%     
===========================================
  Files            6        5       -1     
  Lines          171      113      -58     
  Branches        28       22       -6     
===========================================
- Hits           171      105      -66     
- Misses           0        8       +8     

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