Description of Change
Set the SKTouchDeviceType more accurately for touch events on Mac or iOS.

This would be very useful to me. Does it seem like a welcome change? I'd like to discuss before working any further.

Building on Mac wasn't working in my fork, so I developed this in another maui hello world project and developed and ran it there.

This diff simply elaborates the device type based on information already in touch event.

Bugs Fixed

• Fixes #

API Changes

This will make touch events on iOS and Mac have touch types which are more accurately one of:

SKTouchDeviceType.Mouse
SKTouchDeviceType.Pen
SKTouchDeviceType.Touch

rather than always Touch

Behavioral Changes

Same as the above API change.

Required skia PR

None.

PR Checklist

• Has tests (if omitted, state reason in description)
• [ x] Rebased on top of main at time of PR
• Merged related skia PRs
• Changes adhere to coding standard
• Updated documentation