RETH Yield Source

[cashd]

This PR adds Rocket Pool Ether (RETH) as a yield source. RETH is a yield bearing token that updates in price everyday by oracles that aggregate and report the total rewards value accrued by Rocket Pool's validator set. This integration was heavily influenced by the stETH integration #718.

[github-actions]

Hyperdrive Gas Benchmark

Benchmark suite	Current: 5fc1fb4	Previous: 46c834d	Deviation	Status
addLiquidity: min	33915 gas	1546 gas	2093.7257%	🚨
addLiquidity: avg	145192 gas	67936 gas	113.7188%	🚨
addLiquidity: max	402491 gas	293159 gas	37.2944%	🚨
checkpoint: min	29254 gas	1182 gas	2374.9577%	🚨
checkpoint: avg	104064 gas	48477 gas	114.6667%	🚨
checkpoint: max	210817 gas	191559 gas	10.0533%	🚨
closeLong: min	31428 gas	1492 gas	2006.4343%	🚨
closeLong: avg	130919 gas	29374 gas	345.6969%	🚨
closeLong: max	414815 gas	152303 gas	172.3617%	🚨
closeShort: min	31349 gas	1494 gas	1998.3266%	🚨
closeShort: avg	124566 gas	33444 gas	272.4614%	🚨
closeShort: max	200628 gas	149156 gas	34.5088%	🚨
initialize: min	31283 gas	1451 gas	2055.9614%	🚨
initialize: avg	252942 gas	213962 gas	18.2182%	🚨
initialize: max	322135 gas	253953 gas	26.8483%	🚨
openLong: min	33503 gas	1499 gas	2135.0233%	🚨
openLong: avg	166896 gas	51658 gas	223.0787%	🚨
openLong: max	252131 gas	185562 gas	35.8743%	🚨
openShort: min	33848 gas	1520 gas	2126.8421%	🚨
openShort: avg	169160 gas	51482 gas	228.5809%	🚨
openShort: max	361987 gas	181325 gas	99.6344%	🚨
redeemWithdrawalShares: min	31227 gas	1488 gas	1998.5887%	🚨
redeemWithdrawalShares: avg	63426 gas	22375 gas	183.4682%	🚨
redeemWithdrawalShares: max	161436 gas	109301 gas	47.6986%	🚨
removeLiquidity: min	31323 gas	1530 gas	1947.2549%	🚨
removeLiquidity: avg	219303 gas	151225 gas	45.0177%	🚨
removeLiquidity: max	373754 gas	325781 gas	14.7255%	🚨

This comment was automatically generated by workflow using github-action-benchmark.