[Deliverable] Local Dev RLN Harness

[chair28980]

Owner: nwaku

Feature: Local Dev RLN Harness

FURPS:

• F1. Runs local Ethereum environment.

• F2. Deploys ERC-20 and RLN smart contract.

• F3. Utility to fund wallet addresses with necessary tokens for deposit for RLN membership registration.

• U1. Developer only need to run a script to setup local blockchain environment.

• U2. Developers can run documented RPC calls to fund wallet addresses.

• U3. Developers can run documented RPC calls to interact with RLN smart contract.

Checklist:

• Specs: link to specs and/or API definition
• Code: link to GitHub issues/PRs/Epic
• Dogfood: link to dogfooding session/artefact
• Docs: links to README.md or docs.waku.org (TBD)

[stubbsta]

The waku-simulator can be used for this and most of the FURPS are currently covered.
I don't know if the simulator is too involved for this requirement?
I'm busy updating the README and usage instructions and need to add a tool to cover F3 (there is currently a mechanism for this but only within the docker-compose work flow, not for any additional nodes that are added to the network).
Or is this something we want as part of the nwaku or nwaku-compose repos? @fryorcraken