Add the source editor wrapper to be used by the Pipeline Wizard

What does this MR do and why?

This MR is part of a larger effort to introduce the Pipeline Wizard Component

This introduces a wrapper component around the Source Editor that will be used by the Pipeline Wizard for visualizing the changes the wizard makes to a YAML document.

This Component therefore utilises the YAML Source Editor extension.

This component will only be used downstream. This MR does not expose this component to the UI yet.

MR acceptance checklist

This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.

• I have evaluated the MR acceptance checklist for this MR.