Build system changed to Cmake, ORM changed to QxORM, Qt6 compatibility.

shop/ishopitem.cpp

@@ -0,0 +1,14 @@
+#include "ishopitem.h"
+
+QX_REGISTER_CPP_SHOP(IShopItem)
+
+namespace qx {
+    template<>
+    void register_class(QxClass<IShopItem> &) {
+
+    }
+}
+
+IShopItem::IShopItem(QObject *parent) : QObject(parent) {
+
+}