[core] Add MapOptions to define properties of Map

To simplify the Map constructor, introduce MapOptions
interface to define the properties that can be set on
a Map.

test/api/api_misuse.test.cpp

@@ -3,6 +3,7 @@
 #include <mbgl/test/fixture_log_observer.hpp>
 
 #include <mbgl/map/map.hpp>
+#include <mbgl/map/map_options.hpp>
 #include <mbgl/renderer/backend_scope.hpp>
 #include <mbgl/gl/headless_frontend.hpp>
 #include <mbgl/storage/online_file_source.hpp>
@@ -27,7 +28,8 @@ TEST(API, RenderWithoutCallback) {
     HeadlessFrontend frontend { pixelRatio, fileSource, threadPool };
 
     auto map = std::make_unique<Map>(frontend, MapObserver::nullObserver(), frontend.getSize(),
-                                     pixelRatio, fileSource, threadPool, MapMode::Static);
+                                     pixelRatio, fileSource, threadPool,
+                                     MapOptions().withMapMode(MapMode::Static));
     map->renderStill(nullptr);
 
     // Force Map thread to join.