Add implemented and used getKnownProducts from MerkelMain

CM2005 Object Oriented Programming/Topic 4/4.1.7/MerkelMain.h

@@ -0,0 +1,25 @@
+#pragma once
+
+#include <vector>
+#include "OrderBookEntry.h"
+#include "OrderBook.h"
+
+class MerkelMain
+{
+    public:
+        MerkelMain();
+        /** Call this to start the sim */
+        void init();
+    private: 
+        void loadOrderBook();
+        void printMenu();
+        void printHelp();
+        void printMarketStats();
+        void enterOffer();
+        void enterBid();
+        void printWallet();
+        void gotoNextTimeframe();
+        int getUserOption();
+        void processUserOption(int userOption);
+        OrderBook orderBook{"20200317.csv"};
+};