feat: add card regions to declare image slice regions for DFCs

src/data/card_region.hpp

@@ -0,0 +1,34 @@
+//+----------------------------------------------------------------------------+
+//| Description:  Magic Set Editor - Program to make Magic (tm) cards          |
+//| Copyright:    (C) Twan van Laarhoven and the other MSE developers          |
+//| License:      GNU General Public License 2 or later (see file COPYING)     |
+//+----------------------------------------------------------------------------+
+
+#pragma once
+
+#include <util/prec.hpp>
+#include <util/reflect.hpp>
+#include <script/scriptable.hpp>
+
+DECLARE_POINTER_TYPE(CardRegion);
+
+class CardRegion : public IntrusivePtrBase<CardRegion> {
+public:
+	CardRegion();
+	virtual ~CardRegion();
+
+	String name;
+	double x, y;
+	int width, height;
+
+private:
+	DECLARE_REFLECTION();
+};
+
+inline String type_name(const CardRegion&) {
+	return _TYPE_("card region");
+}
+
+inline String type_name(const vector<CardRegionP>&) {
+	return _TYPE_("card regions");
+}