Add implemented new OrderBook statistical functions

CM2005 Object Oriented Programming/Topic 4/4.3.3/main.cpp

@@ -0,0 +1,13 @@
+#include <iostream>
+#include <string>
+#include <vector>
+#include "OrderBookEntry.h"
+#include "MerkelMain.h"
+#include "CSVReader.h"
+
+int main()
+{
+    MerkelMain app{};
+    app.init();
+    return 0;
+}