feat: support external url

[npty]

Description

AXE-3085

This PR added a new API setupAndExported to allow passing external rpc urls to setup local dev environment, instead of running evm nodes internally.

The API will require the SetupLocalOptions to be passed in to the function, but the only required parameter is chains. Here's example of usage:

import { setupAndExport, Network} from '@axelar-network/axelar-local-dev';

async function deployAndFundUsdc(chain: Network) {
    await chain.deployToken('Axelar Wrapped aUSDC', 'aUSDC', 6, BigInt(1e22));
}

await setupAndExport({
    callback: (chain: Network) => deployAndFundUsdc(chain),
    chains: [
        {
            name: 'Ethereum',
            rpcUrl: 'http://localhost:8545',
        },
        {
            name: 'Avalanche',
            rpcUrl: 'http://localhost:8546',
        },
    ],
})

You can also passing seed into the function which will be used by the relayer. If not specified, the default seed is the default seed of anvil command which is test test test test test test test test test test test junk

After this, you can deploy contracts to both chains and start using GMP. Here's an example usage using by test