RPC: Client side callbacks with server-applied arguments (+ more robust classic RPC)

[wokalski]

In this PR we add the ability to pass client-side functions to components. It means that we can say on the server that a function defined on the client should be triggered on a component event without an additional server round-trip.

Example

// config.ts
export const config = {
  Main: {
    onPress: localCallback(InputProp.void, { alertText: InputProp.string }),
  },
};

// server/index.ts
type OnPress = ClientSideCallback<void, { alertText: string }>;

const Main = (props: {onPress: OnPress}) => (
  <TouchableOpacity onPress={clientSide(props.onPress, { alertText: "Hello world!" })}>
  </TouchableOpacity>
);

// client/index.ts
<RemoteComponent
  name="Main"
  props={{onPress: (_: void, {alertText}) => {
    Alert.alert(alertText);
  }}}
/>

[wokalski]