TrustWallet Staking Platform Integration

[enlight]

We want to make staking LOOM easier by integrating it into the TrustWallet Staking Platform, and overview of the various bits that are required can be found at https://developer.trustwallet.com/staking

The required integration steps are tracked by the following issues:

• [ ] Step 1 - Implement protobufs & signer in trustwallet/wallet-core (https://github.com/loomnetwork/loomchain/issues/1459)
• [ ] Step 3 - Implement new RPC methods to provide staking data to trustwallet/blockatlas (https://github.com/loomnetwork/loomchain/issues/1461)
• [ ] Step 4 - Collate and submit info about at least 3 PlasmaChain validators to trustwallet/assets
• [ ] Step 5 - Implement RPC client to interact with DPOS contract in trustwallet/web-core (https://github.com/loomnetwork/loomchain/issues/1460)

[atchapcyp]

More detail of TrustWallet staking platform. https://platform.trustwallet.com/ Github Repo : https://github.com/trustwallet/platform