[Pitch] Distributed RemoteCall Semantics

Hello everyone, continuing the series of of Distributed improvements I've been working on recently. This proposal introduces the @remoteCall(...) attribute which can be applied to distributed func/var declarations. It allows expressing semantic expectations that the runtime system should respect when turning a remote method call into the underlying networking/messaging. The most requested semantic is @remoteCall(oneway) which allows an actor system to leverage transport-native "fire and forge...