Add light settings to MapboxMap

[1ec5]

Per #8431 (comment), MapboxMap needs getLight() and setLight() methods for setting style-wide parameters like lighting color and intensity. We’ll need a Light class to hold these individual properties.

/cc @ivovandongen @tobrun @lbud @jfirebaugh

[tobrun]

The core implementation landed with #8889 🎉, I will now work on the Android binding of this.

[1ec5]

#8840 is the corresponding iOS/macOS issue.

[tobrun]

This happened in #9013, closing.