Add support for largeBlob extension

[geel9]

This PR adds support for the largeBlob extension.

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 0% with 8 lines in your changes are missing coverage. Please review.

Project coverage is 74.27%. Comparing base (9ad038b) to head (ccd666a).

Files	Patch %	Lines
...Objects/AuthenticationExtensionsLargeBlobInputs.cs	0.00%	3 Missing ⚠️
...bjects/AuthenticationExtensionsLargeBlobOutputs.cs	0.00%	3 Missing ⚠️
...ls/Objects/AuthenticationExtensionsClientInputs.cs	0.00%	1 Missing ⚠️
...s/Objects/AuthenticationExtensionsClientOutputs.cs	0.00%	1 Missing ⚠️

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Additional details and impacted files

@@            Coverage Diff             @@
##           master     #508      +/-   ##
==========================================
- Coverage   74.49%   74.27%   -0.23%     
==========================================
  Files          98      100       +2     
  Lines        2639     2647       +8     
  Branches      445      445              
==========================================
  Hits         1966     1966              
- Misses        570      578       +8     
  Partials      103      103              

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[abergs]

LGTM! Thanks for this contribution