Draft: Workspace ports extension POC

Issue: Investigate adding workspace ports to Gitlab Wo... (gitlab-org/gitlab#509784 - closed)

Description

This is a POC MR to extend the gitlab-vscode-extension with a new workspace_ports feature that will allow users to configure ports inside a remote development workspace.

Related Issues

• Investigate adding workspace ports to Gitlab Wo... (gitlab-org/gitlab#509784 - closed)
• Investigate exposing ports for workspaces (gitlab-org/gitlab#501665 - closed)
• Investigate UI for showing ports in VS Code ter... (gitlab-org/gitlab#505745)

Screenshots

Demo	demo
Screenshot