feat(azure-storage-blob): add raw support

[peterbud]

This PR adds raw item get/set support, similar to abandoned #442, but also adds test for that new procedures.

Also I have noticed that the current removeItem test fails, as delete operation with non-existent keys leads to an error. I assume the intention is not to fail in such cases, so I have not changed the removeItem test, but added a check before attempting to delete the blob at the Azure Blob driver.

[codecov]

Codecov Report

Attention: Patch coverage is 7.14286% with 26 lines in your changes missing coverage. Please review.

Project coverage is 59.63%. Comparing base (4d61c78) to head (5a56d23).
Report is 160 commits behind head on main.

Files with missing lines	Patch %	Lines
src/drivers/azure-storage-blob.ts	7.14%	26 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #565      +/-   ##
==========================================
- Coverage   65.05%   59.63%   -5.43%     
==========================================
  Files          39       42       +3     
  Lines        4055     3676     -379     
  Branches      487      590     +103     
==========================================
- Hits         2638     2192     -446     
- Misses       1408     1481      +73     
+ Partials        9        3       -6     

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[itpropro]

Thanks for bringing this up again, I unfortunately missed the PR.
Let me go over the tests to validate we are fine here so we can proceed as soon as possible.