Adds new Pointer objects to the Input Manager.
By default Phaser creates 2 pointer objects:
You can create more either by calling this method, or by setting the
in the Game Config, up to a maximum of 10 pointers.
The first 10 pointers are available via the
InputPlugin.pointerX properties, once they have been added
via this method.
The number of new Pointers to create. A maximum of 10 is allowed in total.
An array containing all of the new Pointer objects that were created.