Open Match Kotlin Client

This Open Match Client provides the interface for communication with the Open Match matchmaking service and infrastructure. The different interfaces need to be used in order to register new tickets within Open Match and watch on changes regarding those tickets or their assignments. Each instance contacts the same (replicated) Frontend and the API calls are relayed from there to the corresponding services of Open Match. The client stays in contact with the Frontend throughout the whole lifetime of the instance.

We needed to implement our own Open Match client because there is no official client and the existing alternative would be to manually implement the gRPC calls on at the game servers (frontend). Therefore, we started implementing our own solution on-top of the Protobuf definitions that Open Match already provides. We'll try to update the Open Match mappings every time that there is an API change.