Added logger

src/Logger.h

@@ -0,0 +1,18 @@
+#ifndef LOGGER_H
+#define LOGGER_H
+
+#include <vector>
+
+class Token;
+
+using namespace std;
+
+class Logger {
+private:
+    static string toString(shared_ptr<Token> token);
+
+public:
+    static void print(vector<shared_ptr<Token>> tokens);
+};
+
+#endif