improv: logger autocomplete for PyCharm

[heitorlessa]

Issue #, if available: #107

Description of changes:

Problem summary: PyCharm does not infer from proxied objects when building autocomplete. This means #99 broke autocomplete feature in PyCharm but not in VSCode.

This PR re-adds sub-classing for Logger, and an additional test to cover log statement location key.

Checklist

• Meet tenets criteria
• Update tests
• Update docs
• PR title follows conventional commit semantics

Breaking change checklist

RFC issue #:

• Migration process documented
• Implement warnings (if it can live side by side)

By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice.

[codecov-commenter]

Codecov Report

Merging #110 into develop will not change coverage.
The diff coverage is 100.00%.

@@            Coverage Diff            @@
##           develop      #110   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           17        17           
  Lines          499       499           
  Branches        46        46           
=========================================
  Hits           499       499           

Impacted Files	Coverage Δ
aws_lambda_powertools/logging/logger.py	100.00% <100.00%> (ø)

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[lgtm-com]

This pull request introduces 1 alert when merging 1eafdf4 into 32549c8 - view on LGTM.com

new alerts:

• 1 for Missing call to __init__ during object initialization

[lgtm-com]

This pull request introduces 1 alert when merging 75b2c16 into 32549c8 - view on LGTM.com

new alerts:

• 1 for Missing call to __init__ during object initialization