* Update `@solana/eslint-config-solana`
* [web3.js][experimental] Add Watchman config to ignore `dist` and `node_modules` folders
* [web3.js][experimental] Install Jest
* [web3.js][experimental] Configure Jest to lint, format, and test code
* [web3.js][experimental] Add a typecheck step
* [web3.js][experimental] Add fake tests and fake implementation to exercise the build infra