[core] Added {set,get}{Min,Max}Pitch

src/mbgl/map/transform_state.cpp

@@ -176,6 +176,25 @@ double TransformState::getMaxZoom() const {
     return scaleZoom(max_scale);
 }
 
+void TransformState::setMinPitch(double minPitch) {
+    if (minPitch <= getMaxPitch()) {
+        min_pitch = minPitch;
+    }
+}
+
+double TransformState::getMinPitch() const {
+    return min_pitch;
+}
+
+void TransformState::setMaxPitch(double maxPitch) {
+    if (maxPitch >= getMinPitch()) {
+        max_pitch = maxPitch;
+    }
+}
+
+double TransformState::getMaxPitch() const {
+    return max_pitch;
+}
 
 #pragma mark - Rotation