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

src/data/card_region.cpp

@@ -0,0 +1,25 @@
+//+----------------------------------------------------------------------------+
+//| 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)     |
+//+----------------------------------------------------------------------------+
+
+#include <util/prec.hpp>
+#include <data/card_region.hpp>
+
+CardRegion::CardRegion()
+  : name("")
+  , x(0.0)
+  , y(0.0)
+  , width(0)
+  , height(0)
+{}
+CardRegion::~CardRegion() {}
+
+IMPLEMENT_REFLECTION(CardRegion) {
+  REFLECT(name);
+  REFLECT(x);
+  REFLECT(y);
+  REFLECT(width);
+  REFLECT(height);
+}