Datasource example

{
	"name": "datasource",
	"connector": "@gdbc/loopback-connector-contract-web3",
	"provider": "ws://localhost:8545",
	"contracts" : [
		{
			"contractName":"SimpleStorage",
			"abi":[],
			"address": "0x1234567890987654321234567890987654321234",
			"options": {
				"defaultAccount": "0x1234567890987654321234567890987654321234"
			}
		}
	],
	"mnemonic" : {
		"method" : "raw",
		"value": "spike member shift round van idea despair have provide tunnel silent rug"
	},
}