[TEMP CHECK] Add wstUSR to Aave v3 Core Instance

We’re interested in seeing the opinion of the risk providers here. UXD Protocol was the precursor to (and inspiration behind) Ethena but did not succeed due to a lack of open interest and hedging options. We’d like to better understand Resolv’s model, the venues it uses for hedging, and its risk profile. Ethena have themselves said that USDe is not a stablecoin, and we’d like to better grasp USR’s risk profile in this context.