* Add 'deploy' command in Devfile to support outer-loop case for the website
The goal is to leverage this for creating PR deploy previews
in an automated way.
* Add GitHub Workflow to create Deploy previews for PRs using 'odo deploy'
* Leverage the image-names-as-selector feature
* Add odo binary location to system path to make it easier to use it
* Do not change the Devfile name dynamically
We are using a robot account on quay.io,
which requires specific permissions per repository name,
which cannot be dynamic in this case.
Since we are scoping everything per namespace, it should be fine.
