feat: added Azure support

[ErikBjare]

Closes #58

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 51.16279% with 21 lines in your changes missing coverage. Please review.

Project coverage is 81.34%. Comparing base (cbff686) to head (afe560d).
Report is 399 commits behind head on master.

Files with missing lines	Patch %	Lines
gptme/llm.py	27.27%	16 Missing ⚠️
gptme/config.py	72.22%	5 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master      #66      +/-   ##
==========================================
- Coverage   81.52%   81.34%   -0.18%     
==========================================
  Files          26       26              
  Lines        1797     1812      +15     
==========================================
+ Hits         1465     1474       +9     
- Misses        332      338       +6     

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