Add C Interface for Creature::GetActiveTalent.

CInterface/Battling/Creature.cpp

@@ -56,6 +56,9 @@ export uint8_t CreatureLib_Creature_Damage(Creature* p, uint32_t damage, DamageS
 export uint8_t CreatureLib_Creature_Heal(Creature* p, uint32_t health, bool canRevive) {
     Try(p->Heal(health, canRevive);)
 }
+export uint8_t CreatureLib_Creature_GetActiveTalent(const Creature* p, const char*& out) {
+    Try(out = p->GetActiveTalent().c_str();)
+}
 export uint8_t CreatureLib_Creature_OverrideActiveTalent(Creature* p, const char* talent) {
     Try(p->OverrideActiveTalent(ArbUt::StringView(talent));)
 }