REMOVED USER_STD macros, code formating, csv changes, few file functions

ml_io.h

@@ -0,0 +1,21 @@
+#pragma once
+
+#include "../ml.h"
+
+#include <string>
+#include <vector>
+#include <iostream>
+#include <fstream>
+
+std::string read_file_contents(const std::string &filename);
+
+MlValue list_dir(const std::string &path);
+
+bool is_path_file(const std::string &path);
+
+bool is_path_dir(const std::string &path);
+
+int mk_dir(const std::string &path);
+
+int rm_dir(const std::string &path);
+