TRC-84: Approve Gauge for TBYMarch24(a)-USDC + Future TBY Maturities - Bloom Protocol

TBYs make T Bill yields permissionless, but it comes at a cost: you lose 1% yield in the process. That means that currently, TBYs pay about 4.5%. This is already the best and safest composable/non-KYC yield in DeFi currently available. However, the product goal is to start bringing dollars back from TradFi rails onto DeFi rails for the good of the whole space. Thus, a layer of rewards would help to beat the "risk free rate" in tradfi while only introducing a bit of additional smart contract risk, with little to no added economic risk. A very attractive offering for investors.