Show $ values next to ZEC amounts

src/settings.h

@@ -31,8 +31,10 @@ public:
 
 	const QString& getZcashdConfLocation() { return confLocation; }
 
-	void   setZECPrice(double p) { zecPrice = p; }
-	double getZECPrice() { return zecPrice; }
+	void   	setZECPrice(double p) 		{ zecPrice = p; }
+	double 	getZECPrice(); 		 		
+	QString getUSDFormat(double bal);
+	QString getZECDisplayFormat(double bal);
 
 private:
     // This class can only be accessed through Settings::getInstance()