Move JNI bindings code from mapbox-gl-native to this repo. (#301)

MapboxGLAndroidSDK/src/cpp/conversion/collection.hpp

@@ -0,0 +1,18 @@
+#pragma once
+
+#include "conversion.hpp"
+
+#include <jni/jni.hpp>
+
+#include <vector>
+
+namespace mbgl {
+namespace android {
+namespace conversion {
+
+std::vector<std::string> toVector(JNIEnv& env, const jni::Array<jni::String>& array);
+jni::Local<jni::Array<jni::String>> toArray(JNIEnv& env, const std::vector<std::string>&);
+
+}
+}
+}