Add a "quickRun" method in duniter API

When making a Duniter module, for testing it, we always have to create a run.js file with the same boring code:

"use strict"

const co = require('co')
const stack = require('duniter').statics.autoStack([{
  name: 'duniter-prover',
  required: require('./index')
}])

co(function*() {
  try {
    yield stack.executeStack(process.argv)
  } catch(e) {
    console.error(e)
  }
  process.exit()
})

We could have some shortcut of it, wrapping above code:

require('duniter').statics.quickRun('./index.js')

We may also want to load several modules:

require('duniter').statics.quickRun('./index.js', 'moduleb.js', 'modulec.js')