Allowing users to update the workspace if they edit the project devfile in VS Code

[l0rd]

Is your enhancement related to a problem? Please describe.

When editing a project devfile in VS Code, the workspace doesn’t get updated automatically.

Describe the solution you'd like

VS Code should watch for changes (including creation or deletion) of devfile.yaml and .devfile.yaml and when it happens propose to the user:

You have made some changes to this repository's devfile.
Do you want to apply them and restart your development environment?

                      || Restart || Continue Editing || Don't Ask again ||

Note: to update the DevWorkspace VS Code should use the devworkspace-generator library