* [ios] added a scale bar
* [ios] update design
* [ios] show/hide scale bar
* [ios] Remove the need to localize 0
* [ios] Support for imperial units
* [ios] Round to nearest foot
* [ios] Make scale bar private
* [ios] Update design and clean up
* [ios] Rename and various optimizations
* [ios] RTL support
* [ios] added max scale and removed animations
* [ios] animate scale bar