Port circle-sort-key

[tobrun]

We already have symbol sort keys but now circle/line as well:

• [core] Enable circle-sort-key property mapbox-gl-native#15875
• Port line-sort-key and fill-sort-key mapbox-gl-native#15839

[chloekraw]

👋 looking at the changes needed for line- and fill-sort-key bindings, I'm interested in pairing with someone on this one after the JNI work is done (and once the core implementation lands).

The changes needed look fairly straightforward from what I can see: the main work would be on CircleLayer.java and PropertyFactory.java, followed by adding tests. I think this would be a great experience for me to learn more about how to add tests to our SDK when we're implementing new features.

[Chaoba]

@chloekraw These changes are made by a script.

If cycle-sort-key is ready in gl-native, we just need comment out this line and run the command make android-style-code all changes will be generated automatically.

[chloekraw]

@Chaoba oh wow, that's so cool!