Support for cloning battles for AI purposes.

Signed-off-by: Deukhoofd <Deukhoofd@gmail.com>

src/Battling/Models/BattleParty.hpp

@@ -13,6 +13,8 @@ namespace CreatureLib::Battling {
         BattleParty(CreatureParty* party, const ArbUt::List<CreatureIndex>& responsibleIndices)
             : _party(party), _responsibleIndices(responsibleIndices) {}
 
+        virtual ~BattleParty() = default;
+
         inline const ArbUt::BorrowedPtr<CreatureParty>& GetParty() const { return _party; }
         inline const ArbUt::List<CreatureIndex>& GetResponsibleIndices() const { return _responsibleIndices; }
 
@@ -40,6 +42,8 @@ namespace CreatureLib::Battling {
             }
             return false;
         }
+
+        virtual BattleParty* Clone() { return new BattleParty(_party->Clone(), _responsibleIndices); }
     };
 }