Implement odo init example Golden Path Template

[rm3l]

As a Backstage contributor contributing a template to my organization, I want to see an example of a working end-to-end template asking users to select a Devfile and starter project, and calling odo to generate a starter project, So that I can understand how I could adapt this template to my own organization needs.

Acceptance Criteria

• It should rely on the Devfile Selector Custom Field Extension (Implement Devfile Selector Custom Field Extension for Backstage #7115) and odo custom actions (Implement Backstage Custom Action for odo init #7116)
• It should provide clear documentation on how to install the template
• End-to-end demo

Related Epic: #7114

[rm3l]

Marking this as complete. I created an example of Backstage GPT relying on the Devfile Selector custom field extension and the custom action plugin.
For now, this is available as a POC under my personal GH account: https://github.com/rm3l/odo-backstage-golden-path-template/blob/main/README.md

We'll create additional issues based on the next steps about this.

Remaining things to do:

• Move this away from my personal account

/close