Add LpxClient/LpxServer stubs, add dispatcher to main

luprex/core/cpp/lpxserver.cpp

@@ -0,0 +1,30 @@
+#include "lpxserver.hpp"
+
+#include "world.hpp"
+#include "drivenengine.hpp"
+#include <memory>
+
+class ServerClient {
+public:
+    int64_t actor_id_;
+    Channel *channel_;
+    std::unique_ptr<World> sync_;
+};
+
+class LpxServer : public DrivenEngine {
+public:
+    std::unique_ptr<World> master_;
+    std::vector<std::unique_ptr<ServerClient>> clients_;
+
+public:
+    virtual void event_init() {
+    }
+
+    virtual void event_update() {
+    }
+};
+
+UniqueDrivenEngine make_LpxServer() {
+    return UniqueDrivenEngine(new LpxServer);
+}
+