✨ SmileWanted new ad code support

[MaxSmileWanted]

This PR adds support for a new ad code that SmileWanted would like to start using within our AMP widgets.

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[MaxSmileWanted]

I signed the CLA ;)

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CLAs look good, thanks!

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[MaxSmileWanted]

Please can someone review this PR ;)

[MaxSmileWanted]

@jridgewell Hello can you asign someone to review to review this PR.

[jridgewell]

@lannka