Add class CashUtils: utility methods for CashProcessing

src/ATBAPP/support/CashUtils.h

@@ -0,0 +1,23 @@
+#ifndef CASHUTILS_H
+#define CASHUTILS_H
+
+#include <QObject>
+#include "interfaces.h"
+
+class CashUtils : public QObject
+{
+    Q_OBJECT
+
+public:
+    static uint32_t getAmountOfInsertedCoins(hwinf* hw);
+    static uint32_t getAmountOfInsertedNotes(hwinf* hw);
+    static uint32_t getAmountDueToChange(hwinf* hw);
+
+private:
+    explicit CashUtils(QObject *parent = nullptr);
+
+signals:
+
+};
+
+#endif // CASHUTILS_H