[py] added type hints to SwitchTo class

[sandeepsuryaprasad]

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Description

Type Hinting support for SwitchTo class in remote/switch_to.py

Motivation and Context

Type Hinting support for SwitchTo class in remote/switch_to.py

Types of changes

• [] Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• [] Breaking change (fix or feature that would cause existing functionality to change)

Checklist

• I have read the contributing document.
• [] My change requires a change to the documentation.
• [] I have updated the documentation accordingly.
• [] I have added tests to cover my changes.
• All new and existing tests passed.

[codecov-commenter]

Codecov Report

Patch coverage: 87.50% and project coverage change: +0.14 🎉

Comparison is base (2fd7dd7) 56.92% compared to head (ca3ae18) 57.06%.

❗ Current head ca3ae18 differs from pull request most recent head 465b0f5. Consider uploading reports for the commit 465b0f5 to get more accurate results

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Additional details and impacted files

@@            Coverage Diff             @@
##            trunk   #12296      +/-   ##
==========================================
+ Coverage   56.92%   57.06%   +0.14%     
==========================================
  Files          86       86              
  Lines        5423     5425       +2     
  Branches      193      193              
==========================================
+ Hits         3087     3096       +9     
+ Misses       2143     2136       -7     
  Partials      193      193              

Impacted Files	Coverage Δ
py/selenium/webdriver/remote/switch_to.py	54.16% <85.71%> (+17.21%)	⬆️
py/selenium/webdriver/ie/options.py	47.50% <100.00%> (ø)

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