flutter add ios permissions code example

Example: flutter add ios permissions

<key>NSLocationWhenInUseUsageDescription</key>
<string>This app needs access to location in the background.</string>    
<key>NSLocationAlwaysUsageDescription</key>
<string>This app needs access to location when in the background.</string>
<key>NSLocationAlwaysAndWhenInUseUsageDescription</key>
<string>This app needs access to location when open and in the background.</string>