Add launch_test examples

[griswaldbrooks]

Need

In order to have a more complete set of examples
As a developer
I want to see an example of how to write a launch test

Acceptance Criteria

Scenario: repo should have examples of launch testing
GIVEN a developer wants to write a launch test
WHEN they check out the repo
THEN they will have a launch testing example to start from

Tasks

• add launch test example

Notes

First example should be trivial, and we can add more as needed.
Probably one that uses cmake, and another of pure python?

References: