ZK server integration.

[RustNinja]

zk remote api workflow:

• received request to create_proof from relayer.
• write msgs, sigs, and pub keys into data.json file in the root of this project
• run the command npm test to generate the batchinput.json
• change directory to {}/circuits/batchverify_js
• execute node generate_witness.js batchverify.wasm batchinput.json witness.wtns
• change directory to {}/circuits
• snarkjs groth16 prove batchverify_0001.zkey witness.wtns proof_{h}.json public_{h}.json. where h is the block height.
• receive request get_proof -> read from the proof_{h}.json and return response to relayer

add logic into testH2.test.js to work together with a zk remote service