agent/hello world - Githubissues

Proposed changes

This PR adds a hello world agent.

Put an x in the boxes that apply.

[x] I have read the CONTRIBUTING doc
[x] I am making a pull request against the develop branch (left side). Also you should start your branch off our develop.
[x] Lint and unit tests pass locally with my changes and CI passes too
[x] I have added tests that prove my fix is effective or that my feature works
[ ] I have checked that code coverage does not decrease.
[ ] I have added necessary documentation (if appropriate)
[x] Any dependent changes have been merged and published in downstream modules