When a Devfile has multiple projects, only the first one is opened in VS Code

[l0rd]

Is your enhancement related to a problem? Please describe

When a devfile has multiple projects, only the first is shown in VS Code explorer sidebar at startup. Note that the projects are cloned and available, it's just that they are not automatically added in VS Code.

Describe the solution you'd like

VS Code should show all the projects. A proposed solution is to generate a VS Code workspace file at startup.

Describe alternatives you've considered

A workaround is adding a workspace file in the git repository and reference its path in the environment variable VSCODE_DEFAULT_WORKSPACE in the devfile:

schemaVersion: 2.2.0
(...)
components:
- name: dev-tools
  container:
    (...)
    env:
    - name: VSCODE_DEFAULT_WORKSPACE
      value: "/projects/che-demo-app/che-demo.code-workspace"

Additional context

No response