[Server] Add OnServerPostInit callback

apps/openmw-mp/Script/ScriptFunctions.hpp

@@ -109,6 +109,7 @@ public:
     static constexpr ScriptCallbackData callbacks[]{
             {"Main",                     Function<int, int, int>()},
             {"OnServerInit",             Function<void>()},
+            {"OnServerPostInit",         Function<void>()},
             {"OnServerExit",             Function<void, bool>()},
             {"OnPlayerConnect",          Function<bool, unsigned short>()},
             {"OnPlayerDisconnect",       Function<void, unsigned short>()},

apps/openmw-mp/main.cpp

@@ -251,6 +251,8 @@ int main(int argc, char *argv[])
         networking.getMasterClient()->Start();
     }
 
+    Script::Call<Script::CallbackIdentity("OnServerPostInit")>();
+
     int code = networking.mainLoop();
 
     RakNet::RakPeerInterface::DestroyInstance(peer);