feat: Web3Wallet Example (#94)

* feat: v2 wallet

* feat: Web3Wallet sign integration

* chore: adds `core` to package.json

* feat: Web3Wallet Auth integration

* chore: core & web3wallet canary

* chore: rm config

* chore: force redeploy

* chore: rm core & sign-client deps

* fix: rm `sign-client` usage

* refactor: updates README

* feat: adds metadata mock obj & removes relay url param

* refactor: more url mentions

* refactor: rm v2 wallet readme references & uses web3wallet.core...

* refactor: wallet -> web3wallet

* refactor: rm wallet to web3wallet

* fix: adds async to example listeners

wallets/react-web3wallet/.env.local.example

@@ -0,0 +1,3 @@
+NEXT_PUBLIC_PROJECT_ID=...
+NEXT_PUBLIC_RELAY_URL=wss://relay.walletconnect.com
+