Support new chain

1. Add chain ID & explorer URL to telliot_core.directory.ContractInfo.get_abi().
2. Add chain ID & name to telliot_core.apps.core.NETWORKS.
3. Add chain info to telliot_core.model.chain.default_chains_list.
4. Add chain ID & gas/fee info retrieval to telliot_core.gas.legacy_gas.gas_station.
5. Add endpoint info to telliot_core.model.endpoints.default_endpoint_list.
6. Add deployed oracle contract and autopay info to telliot_core.data.contract_directory.json:
   • Add address for tellor360-autopay.
   • Add address for tellor360-oracle.
   • Add address for trb-token.
   • Add address for tellor-governance.
7. Follow steps to support a new chain in telliot-feeds.