Move Script ownership to script holder, added OnRemove script hook.

src/Battling/ScriptHandling/ScriptSet.hpp

@@ -11,6 +11,12 @@ namespace CreatureLib::Battling {
         std::unordered_map<std::string, size_t> _lookup;
 
     public:
+        ~ScriptSet() {
+            for (auto s : _scripts) {
+                delete s;
+            }
+        }
+
         void Add(Script* script) {
             auto f = _lookup.find(script->GetName());
             if (f != _lookup.end()) {
@@ -24,12 +30,18 @@ namespace CreatureLib::Battling {
         void Remove(const std::string& key) {
             auto find = _lookup.find(key);
             if (find != _lookup.end()) {
+                auto script = _scripts[find->second];
+                script->OnRemove();
+                delete script;
                 _scripts.erase(_scripts.begin() + find.operator*().second);
                 _lookup.erase(key);
             }
         }
 
         void Clear() {
+            for (auto s : _scripts) {
+                delete s;
+            }
             _scripts.clear();
             _lookup.clear();
         }