[DRAFT] feat: core react component for google publisher tag ads

[chriseagle]

Description of the Change

Addition of a new core component to display Google GPT adverts with changes to useScript hook.

How to test the Change

WIP

Changelog Entry

Added - AdvertGPT Component which displays Ads and provides support for core GPT params and options. Changed - useScript hook to support placement of script tag in head or body

Checklist:

• [ x] I agree to follow this project's Code of Conduct.
• [ ] I have updated the documentation accordingly.
• [ ] I have added tests to cover my change.
• [ ] All new and existing tests pass.