Decompile some Action classes (#104)

* various action classes

* rename instanceset fns

* rename isFork -> isChangeable

src/Game/AI/Action/actionGameDataAddInt.cpp

@@ -15,7 +15,7 @@ bool GameDataAddInt::oneShot_() {
     auto* gdm = ksys::gdt::Manager::instance();
     if (!gdm) {
         setFailed();
-        mFlags.set(Flag::_4);
+        mFlags.set(Flag::Changeable);
         return false;
     }