[Humble] Feature: Generator Sample Tests

[mergify]

Backport of #315 to Humble.

[mergify]

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On branch mergify/bp/humble/pr-315
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Changes to be committed:
	modified:   .github/workflows/ci.yml
	deleted:    README
	new file:   README.md
	modified:   clearpath_generator_robot/clearpath_generator_robot/param/generator.py
	modified:   clearpath_generator_robot/test/test_generator_launch.py
	modified:   clearpath_generator_robot/test/test_generator_param.py

Unmerged paths:
  (use "git add <file>..." to mark resolution)
	both modified:   clearpath_generator_robot/clearpath_generator_robot/launch/generator.py
	both modified:   dependencies.repos

To fix up this pull request, you can check it out locally. See documentation: https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/reviewing-changes-in-pull-requests/checking-out-pull-requests-locally