Add Merkle Proofs

[l16h7n1n6s]

Hello and thnx for your time may i ask do you have time to implement The createProof and verifyProof functions allow you to verify that a certain value does or does not exist within a Merkle-Patricia trie with a given root.

Here is an example in node.js of what i mean
https://github.com/ethereumjs/ethereumjs-monorepo/tree/master/packages/trie#merkle-proofs

is this possible to quick add it. i am willing to donate if you want