Fix data path resolution to allow absolute paths

Author: djhi

bin/json-graphql-server.cjs

@@ -5,7 +5,7 @@ var express = require('express');
 var cors = require('cors');
 var JsonGraphqlServer = require('../dist/json-graphql-server-node.cjs').default;
 var dataFilePath = process.argv.length > 2 ? process.argv[2] : './data.json';
-var data = require(path.join(process.cwd(), dataFilePath));
+var data = require(path.resolve(process.cwd(), dataFilePath));
 var PORT = process.env.NODE_PORT || 3000;
 var HOST = process.env.NODE_HOST || 'localhost';
 var app = express();