Add prompt for generative ai tooling

To assist with the creation of new test scripts, we could consider using generative AI to assist with the creation of new test scripts.

In some circumstances the output of such a script will have limitations but it may help with the crafting of the base shape of a new test script.

This prompt is designed to work when using an AI agent that supports Model Context Protocol which has access to this repository.

Part of Create demo video: Using AI pair programming to... (gitlab-org/quality/quality-engineering/team-tasks#3644 - closed)