Express: Add middlewareFactory(deps)(middleware)

[vlaurin]

Fixes #49

import {middlewareFactory} from '@quickcase/node-toolkit';
import express from 'express';
const router = express.Router();
const dependencySuppliers = {
  tokenProvider: (req) => () => Promise.resolve(req.accessToken),
  service: (req) => {...},
};
const middlewareSupplier = ({tokenProvider, service}) => (req, res) => {
  // use initialised `tokenProvider` and `service`...
};
router.get('/', middlewareFactory(dependencySuppliers)(middlewareSupplier));