[BIP-106] Enable sfrxETH/wstETH/rETH Gauge [Ethereum]

Summary:

This pool uses the composable stable pool factory and contains three unique staked ethereum tokens, staked frax eth (sfrxETH), wrapped staked eth from Lido (wstETH), and rocket eth from Rocket pool (rETH). As most Balancer community members know, rocket pool and lido have become pillars of the ecosystem through the use of the metastable / composable stable pool types to leverage their yield bearing assets. Staked frax eth will be joining these two juggernauts to facilitate trading and LPing amongst these diverse staking strategies of ETH. This gauge would enter as a “core pool” under BIP-19, meaning protocol fees earned by this pool would be used to bribe for votes on it.

References/Useful links:

(sfrxETH) Link to: • Website • Documentation • Github Page • Communities (wstETH) Link to: • Website • Documentation • Github Page • Communities (rETH) Link to: • Website • Documentation • Github Page • Communities

Protocol Description:

sfrxETH is a Frax's staked wrapped ETH token, wstETH is a wrapped staked ETH token for Lido, and rETH is the staked ETH token for Rocket Pool.

Motivation:

Balancer is clearly pushing forward on all networks with staked assets as a key focus. By diversifying the protocols which supply staked assets Balancer opens up the door to liquidity providers to gain exposure to multiple providers, while facilitating trade routes for these assets. The protocol benefits greatly from yield bearing assets, and Balancer's users do just as much. This pool will be a unique and diverse group of Ethereum assets making it exciting for everyone involved.

Specifications:

1. Governance: Find more information about governance on each projects forum. sfrxETH , wstETH. , rETH
2. Oracles: See each rate provider contract linked here respectively sfrxETH , wstETH, rETH
3. Audits: See sfrxETH , wstETH, rETH.
4. Centralization vectors: Rocket Pool is a protocol for decentralized and trustless ETH2 staking. For Lido and wstETH please read here . Lastly for FRX and sfrxETH see here.
5. Market History: See rETH , wstETH , and sfrxETH
6. Value: Balancer will earn the protocol fee on all assets in the pool and so will LPs. The BIP-19 flywheel will incentivize TVL to grow here with trading volume and our staked ethereum pillars will continue to have Balancer as their ideal liquidity destination.

Link to pool: 0x8e85e97ed19C0fa13B2549309965291fbbc0048b Link to gauge: 0x3F0FB52648Eb3981EA598716b7320081d1c8Ba1a