export "task", "parallel" and "series" from package

[eddyloewen]

Currently one has to import task, parallel and series from gulp in order to define and register the tasks.

import { tasks, options } from '@webtides/tasks';
import { task, parallel, series } from 'gulp';

task('cleanAndCopy', series(tasks.clean(), tasks.copy()));

This will also lead to an IDE error for "gulp" saying: "Module is not listed in package.json dependencies".

It would be nice if we could find a way to export those functions from the tasks module as well.

import { tasks, options, task, parallel, series  } from '@webtides/tasks';