Support for binding globals in the worker scope

[h2non]

It should support passing a key, value or a map of values to extend the global object

thread().bindGlobal('utils', function () {
  // ...
}).run(function () {
  return typeof utils === 'function'
}).then(function (exists) {
   console.log('Exists:', exists) 
})

[h2non]

There will be an issue when using pool of threads... is required to persist the global values in the window scope