Add support for content:// URIs on Android

[Inky-developer]

Is your feature request related to a problem? Please describe.
MapLibre has support for loading file URIs (file://), but for my use case I only have access to a content URI, because I want to stream map data from one app to another.

Describe the solution you'd like
MapLibre should be able to additionally read content:// URIs on Android.

Describe alternatives you've considered

Alternative solutions:

• Read a content uri and copy the data into a temporary file which has a file:// URI. Has a lot of overhead though, because the mapdata have to be copied
• Don't use content:// URIs at all and instead use a localhost server. A lot more complex to set up and might require some additional permissions.

Additional context
Add any other context or screenshots about the feature request here.