Adds missing scripts.

src/ScriptResolving/AngelScript/TypeRegistry/BasicScriptClass.cpp

@@ -36,6 +36,10 @@ shared abstract class PkmnScript {
     void ModifyDamageModifier(ExecutingMove@ attack, Pokemon@ target, uint8 hit, float& modifier){};
     void OverrideDamage(ExecutingMove@ attack, Pokemon@ target, uint8 hit, uint& damage){};
 
+    void ChangePriority(MoveTurnChoice@ choice, int8& priority){};
+    void OnFail(Pokemon@ user){}
+    void OnOpponentFail(Pokemon@ user){}
+
     // PkmnLib methods
     void ModifyCriticalStage(ExecutingMove@ attack, Pokemon@ target, uint8 hit, uint8& critStage){};
     void OverrideCriticalModifier(ExecutingMove@ attack, Pokemon@ target, uint8 hit, float& critModifier){};