Added DCO section to CONTRIBUTING.md and GitHub workflows. Updated copyright notice.

[AWSHurneyt]

Description

1. Added DCO section to CONTRIBUTING.md and GitHub workflows.
2. .Updated copyright notice.

Issues Resolved

35
120

Check List

• New functionality includes testing.
  • All tests pass
• New functionality has been documented.
  • New functionality has javadoc added
• Commits are signed per the DCO using --signoff

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.
For more information on following Developer Certificate of Origin and signing off your commits, please check here.

[codecov-commenter]

Codecov Report

Merging #144 (8b2632c) into main (4e5eba6) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main     #144   +/-   ##
=======================================
  Coverage   50.79%   50.79%           
=======================================
  Files         200      200           
  Lines        4666     4666           
  Branches      594      594           
=======================================
  Hits         2370     2370           
  Misses       2294     2294           
  Partials        2        2           

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