Support for AnthropicBedrock and AzureOpenAI

[willbakst]

Closes #224
Closes #225

• Add bedrock_client_wrapper to anthropic module for wrapping Anthropic and AsyncAnthropic to use AWS Bedrock.
• Add azure_client_wrapper to openai module for wrapping OpenAI and AsyncOpenAI to use Microsoft Azure deployments.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 100.00%. Comparing base (1e63be3) to head (4a7473a).
Report is 4 commits behind head on dev.

Additional details and impacted files

@@            Coverage Diff            @@
##               dev      #285   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files          136       138    +2     
  Lines         6753      6809   +56     
=========================================
+ Hits          6753      6809   +56     

Flag	Coverage Δ
tests	100.00% <100.00%> (ø)

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[brenkao]

approve after fixing nit