[CONTRACTS] - Delegate and Subsidize Gas Fee

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Note to self to finish this later but leveraging a transfer hook to pay gas fee with uAD token

https://opengsn.org

Imagine if our dollar becomes over collateralized (or when we think we have more than enough in the bank and we want to be philanthropic) and we subsidize transaction fees with our dollar! From an economics perspective it's not the best, but from a marketing narrative I think it's fantastic.

[0x4007]

https://github.com/ubiquity/uad-contracts/discussions/93#discussioncomment-1710769