[AAVE-51] Add G-UNI to Aave V2 AMM Market

This is a metagovernance vote whereby TRIBE holders vote here and then the communities 100,000 INDEX holding participates in Index Coop's metagovernance vote through the DPI holding on AIP-51. (TRIBE>>INDEX>>DPI AAVE >>AAVE vote)

Matthew Graham will execute the TRIBE holders vote outcome on the Index Coop snapshot vote.

This proposal is for voting on Aave's proposal #undefined using DPI. Please review the proposal here: https://app.aave.com/governance/51-QmTYrqAZFmc8EfrMTh4PFPBSFwsZ1TqNZ5KR3KnwqB6NeM

Quorum for this vote is 109069 INDEX.