Pass lua source directly into event_init

luprex/cpp/core/lpxserver.cpp

@@ -31,12 +31,12 @@ public:
     Gui gui_;
 
 public:
-    virtual void event_init(int argc, char *argv[]) {
+    virtual void event_init(std::string_view srcpk, int argc, char *argv[]) {
         // Create the master world model.
         master_.reset(new World(WORLD_TYPE_MASTER));
 
         // Update the source code of the master model.
-        master_->update_source(get_lua_source_pack());
+        master_->update_source(srcpk);
 
         // Create an actor for administrative commands.
         admin_id_ = master_->create_login_actor();