See https://docs.google.com/document/d/1iD9ujY76BWVUOdN7rRH4XyPF9hHxx48RcGc-ZaQPyII/edit#heading=h.wt1zjxqe6taa

Part of https://github.com/realm/realm-java/issues/6801

From PR #6810

• [x] Argument/result encoding/decoding support. Defaults to codec registry for primitive types, BsonValue}}s, and {{List and Map types
• [x] Backend support
• [x] Tests
• [x] Test of invoking function only authorized to specific user
• [x] Adobt final package/naming scheme
• [ ] Align async API across other MongoDB related APIs (will be done in separate task when set of API's are known)
• [x] Ignored test due to C++ Parser issues (issue created and tracked in ROS-127)