Omit preventDefault in handleMouseWheel if allowZoom or allowWheel prop is false

[apomelitos]

Hey, @sylvaindubus!

I'd like to have the ability to scroll a parent container while the cursor is over PrismaZoom and the allowWheel={false}
The objective is to have the capability to enable either zoom or parent container scroll.
In my case, I have a list of images that users can scroll. When the Shift key is held user should be able to zoom the hovered image. Scroll should be enabled after the Shift key is released.

Please take a look and let me know if I missed something.
Thanks in advance!

[sylvaindubus]

Sorry, I've just seen the notification of the closed PR.

Seems good to me. Would you mind checking if doing the same permutation for handleMouseStart, handleMouseMoveand handleDoubleClick creates unwanted side effects?

Thanks for your contribution!