Add support for saving and getting the owner of a script in script.

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

tests/BattleTests/ScriptTests/ScriptAggregatorTests.cpp

@@ -12,7 +12,7 @@ private:
     ArbUt::StringView _name;
 
 public:
-    explicit TestScript(const ArbUt::StringView& name) : _name(name){};
+    explicit TestScript(const ArbUt::StringView& name) : BattleScript(nullptr), _name(name){};
 
     const ArbUt::StringView& GetName() const noexcept override { return _name; }
 

tests/BattleTests/ScriptTests/ScriptSetTests.cpp

@@ -12,7 +12,7 @@ private:
     ArbUt::StringView _name;
 
 public:
-    explicit TestScript(const ArbUt::StringView& name) : _name(name){};
+    explicit TestScript(const ArbUt::StringView& name) : BattleScript(nullptr), _name(name){};
     const ArbUt::StringView& GetName() const noexcept override { return _name; }
 
     BattleScript* Clone() override { return new TestScript(_name); }

tests/BattleTests/ScriptTests/ScriptSourceTest.cpp

@@ -11,7 +11,7 @@ private:
     ArbUt::StringView _name;
 
 public:
-    explicit TestScript(const ArbUt::StringView& name) : _name(name){};
+    explicit TestScript(const ArbUt::StringView& name) : BattleScript(nullptr), _name(name){};
     const ArbUt::StringView& GetName() const noexcept override { return _name; }
 
     void TestMethod(int& runCount) { runCount++; }