[core] Implement circle-pitch-alignment property

Closes issue #9349.

platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/style/layers/CircleLayer.java

@@ -277,6 +277,16 @@ public class CircleLayer extends Layer {
     return (PropertyValue<String>) new PropertyValue("circle-pitch-scale", nativeGetCirclePitchScale());
   }
 
+  /**
+   * Get the CirclePitchAlignment property
+   *
+   * @return property wrapper value around String
+   */
+  @SuppressWarnings("unchecked")
+  public PropertyValue<String> getCirclePitchAlignment() {
+    return (PropertyValue<String>) new PropertyValue("circle-pitch-alignment", nativeGetCirclePitchAlignment());
+  }
+
   /**
    * Get the CircleStrokeWidth property
    *
@@ -411,6 +421,8 @@ public class CircleLayer extends Layer {
 
   private native Object nativeGetCirclePitchScale();
 
+  private native Object nativeGetCirclePitchAlignment();
+
   private native Object nativeGetCircleStrokeWidth();
 
   private native TransitionOptions nativeGetCircleStrokeWidthTransition();

platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/style/layers/Property.java

@@ -446,6 +446,27 @@ public final class Property {
   @Retention(RetentionPolicy.SOURCE)
   public @interface CIRCLE_PITCH_SCALE {}
 
+  // CIRCLE_PITCH_ALIGNMENT: Orientation of circle when map is pitched.
+
+  /**
+   * The circle is aligned to the plane of the map.
+   */
+  public static final String CIRCLE_PITCH_ALIGNMENT_MAP = "map";
+  /**
+   * The circle is aligned to the plane of the viewport.
+   */
+  public static final String CIRCLE_PITCH_ALIGNMENT_VIEWPORT = "viewport";
+
+  /**
+   * Orientation of circle when map is pitched.
+   */
+  @StringDef({
+      CIRCLE_PITCH_ALIGNMENT_MAP,
+      CIRCLE_PITCH_ALIGNMENT_VIEWPORT,
+    })
+  @Retention(RetentionPolicy.SOURCE)
+  public @interface CIRCLE_PITCH_ALIGNMENT {}
+
   // FILL_EXTRUSION_TRANSLATE_ANCHOR: Controls the translation reference point.
 
   /**

platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/style/layers/PropertyFactory.java

@@ -952,6 +952,28 @@ public class PropertyFactory {
     return new PaintPropertyValue<>("circle-pitch-scale", function);
   }
 
+  /**
+   * Orientation of circle when map is pitched.
+   *
+   * @param value a String value
+   * @return property wrapper around String
+   */
+  public static PropertyValue<String> circlePitchAlignment(@Property.CIRCLE_PITCH_ALIGNMENT String value) {
+    return new PaintPropertyValue<>("circle-pitch-alignment", value);
+  }
+
+
+  /**
+   * Orientation of circle when map is pitched.
+   *
+   * @param <Z> the zoom parameter type
+   * @param function a wrapper {@link CameraFunction} for String
+   * @return property wrapper around a String function
+   */
+  public static <Z extends Number> PropertyValue<CameraFunction<Z, String>> circlePitchAlignment(CameraFunction<Z, String> function) {
+    return new PaintPropertyValue<>("circle-pitch-alignment", function);
+  }
+
   /**
    * The width of the circle's stroke. Strokes are placed outside of the {@link PropertyFactory#circleRadius}.
    *