Move several classes from Core to Arbutils.

src/Battling/Models/CreateCreature.cpp

@@ -30,7 +30,7 @@ CreateCreature* CreateCreature::WithAttack(const std::string& attackName, Attack
 }
 
 Creature* CreateCreature::Create() {
-    auto rand = Core::Random();
+    auto rand = Arbutils::Random();
     auto species = this->_library->GetSpeciesLibrary()->Get(this->_species.c_str());
     auto variant = species->GetVariant(this->_variant);
     int8_t talent;