Advanced Scheduling: Arguments, Options and more

 * Commands can run on multiple schedules (see [Advanced Scheduling](https://github.com/Indatus/dispatcher#advanced-scheduling))
 * Commands can now be scheduled with arguments and options (see [Advanced Scheduling](https://github.com/Indatus/dispatcher#advanced-scheduling))

**Upgrading**
 * Several classes have been moved to the `Indatus\Dispatcher\Scheduling` namespace ([see list](https://github.com/Indatus/dispatcher/tree/master/src/Indatus/Dispatcher/Scheduling))