feat: implemented BitcoinExchange class to process Bitcoin exchange rate data

Author: facetint

ex00/BitcoinExchange.hpp

@@ -0,0 +1,26 @@
+#pragma once
+
+#include <iostream>
+#include <map>
+#include <algorithm>
+#include <fstream>
+#include <sstream>
+#include <exception>
+
+class BitcoinExchange
+{
+    private:
+        std::map<std::string, double> priceData; 
+
+
+    public:
+        BitcoinExchange();
+        ~BitcoinExchange();
+        BitcoinExchange(const BitcoinExchange &other);
+        BitcoinExchange &operator=(const BitcoinExchange &other);
+
+        bool loadDatabase(const std::string& filename);
+        void processInputFile(const std::string& filename);
+        void processArgsAndFiles(int ac, char **av);
+    
+};