Implementation of EIPS-1186: RPC-Method to get Merkle Proofs - eth_getProof

[ShadowsCrypto]

Summary

As DeFiChain MetaChain evolves the need for connections with the outside world (other blockchains) becomes more important.
Currently, there is no easy way for any RPC client or node ops to get any Merkle proofs to use to verify the state/storage against rootState or storageState hashes of DMC blocks. This is an essential requirement for trustless verification of DMC state in a multi-chain setup or project.
To make trustless multi-chain integrations easier, the implementation of eth_getProof is suggested.
https://eips.ethereum.org/EIPS/eip-1186