feat: Adding deferred bindings logs

[hallvictoria]

This PR changes get_dict_repr to return the raw bindings of a function plus a dictionary containing the binding name (unique key), its pytype, and whether or not deferred bindings is enabled for this binding.

This additional dictionary will be returned and used in the worker for logging purposes.

Currently, the worker logs the function name and bindings for each function in a function app in this format:
Function Name: blobTrigger, Function Binding: (blobTrigger, client)

With this change, the worker log would look like:
For a function using deferred bindings (library is imported & at least one sdk type defined):
Function Name: blobTrigger, Function Binding: (blobTrigger, client, {BlobClient: True}), (httpRequest, $req, {http: False})

For a function not using deferred bindings (library may or may not be imported, no sdk type defined):
Function Name: blobTrigger, Function Binding: (blobTrigger, file,)

This would allow us to query and measure usage of this feature as well as the most popular SDK types being used.

NOTE: this is a not a breaking change for the blob extension but will require updating the blob extension tests

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 99.44%. Comparing base (8b02b45) to head (0ac5379).
Report is 1 commits behind head on dev.

❗ Current head 0ac5379 differs from pull request most recent head d1d9d20. Consider uploading reports for the commit d1d9d20 to get more accurate results

Additional details and impacted files

@@             Coverage Diff             @@
##               dev      #28      +/-   ##
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- Coverage   100.00%   99.44%   -0.56%     
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  Files            5        8       +3     
  Lines           95      360     +265     
  Branches         2       93      +91     
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+ Hits            95      358     +263     
- Misses           0        1       +1     
- Partials         0        1       +1     

Flag	Coverage Δ
unittests	99.44% <100.00%> (-0.56%)	⬇️

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