Maps component should handle gestureHandling prop

[mjstromberg]

I'm having an issue on mobile browsers where the user is forced to use two fingers to move the map:

The solution is to allow the Maps component to handle a gestureHandling prop that can then be assigned to the mapConfig object. The gestureHandling prop can accept strings of 'greedy', 'cooperative', 'none', or 'auto'.

I've made the changes and will open a PR. Thanks!

[mjstromberg]

PR created. Thanks for your consideration!