almost finished pre-game deck loading

cockatrice/src/deck_picturecacher.h

@@ -0,0 +1,19 @@
+#ifndef DECK_PICTURECACHER_H
+#define DECK_PICTURECACHER_H
+
+#include <QObject>
+
+class InnerDecklistNode;
+class QProgressDialog;
+class DeckList;
+class QWidget;
+
+class Deck_PictureCacher : public QObject {
+	Q_OBJECT
+private:
+	static void cacheHelper(InnerDecklistNode *item, QProgressDialog *progress);
+public:
+	static void cachePictures(DeckList *deck, QWidget *parent);
+};
+
+#endif