[DEVCONTAINER] support customization and run as non-root user

[dbarker]

Fixes #3265

Changes

• Adds a customization script to allow setting matching user uid/gid to the host and additional system packages
• Adds new docker args and environment variables to set the dependency versions and cxx standard.
• Installs clang-tidy, shellcheck, and markdownlint-cli
• Installs compatible versions of abseil-cpp, Protobuf, and gRPC by default - configured so transitive dependencies are found by cmake after install.
• Runs the devcontainer as a non-root user and overrides the base image entry point to allow interactive bash sessions.

For significant contributions please make sure you have completed the following items:

• CHANGELOG.md updated for non-trivial changes
• Unit tests have been added
• Changes in public API reviewed

[netlify]

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 89.41%. Comparing base (a7f9daf) to head (9162792).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #3270   +/-   ##
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  Coverage   89.41%   89.41%           
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  Files         207      207           
  Lines        6457     6457           
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  Hits         5773     5773           
  Misses        684      684           

[marcalff]

Thanks for the PR.

@esigo Could you take a look ? Thanks.

[esigo]

looks perfect
thanks for the pr :)