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

MapboxGLAndroidSDK/src/cpp/logging_android.cpp

@@ -0,0 +1,13 @@
+#include <mbgl/util/logging.hpp>
+
+#include "logger.hpp"
+#include "attach_env.hpp"
+
+namespace mbgl {
+
+void Log::platformRecord(EventSeverity severity, const std::string &msg) {
+    auto env{ android::AttachEnv() };
+    android::Logger::log(*env, severity, msg);
+}
+
+}