Zoom with the dial#105

Allow the dial to be used for zooming, e.g.:

• click to switch lenses
• turn dial to zoom digitially between lenses.

i think that is more intuitive/user friendly than the flick switch which is still quite a bit of hit and miss for me

At this point, I’d like to be able to disable the zoom control. My hands might be too big for the device and I keep knocking it and zooming in way too far

I keep forgetting that it’s there until my sausage fingers hit it as I’m taking a picture. I’d love to be able to reverse the wheel and toggle switch for controls.