build: add gitpod config file

[agdimech]

Reason for this change

Install required deps and update recommended vscode plugins

Checklist

• My code adheres to the CONTRIBUTING GUIDE and DESIGN GUIDELINES

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By submitting this pull request, I confirm that my contribution is made under the terms of the Apache-2.0 license

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

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Additional details and impacted files

@@           Coverage Diff           @@
##             main     #123   +/-   ##
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  Coverage        ?   95.74%           
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  Files           ?       42           
  Lines           ?     5361           
  Branches        ?      684           
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  Hits            ?     5133           
  Misses          ?      221           
  Partials        ?        7           

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