Added 'cd' and 'dir' command

commands/change_dir.c

@@ -0,0 +1,20 @@
+#include <stdlib.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <dirent.h>
+
+#include "change_dir.h"
+#include "../utils/logger.h"
+
+void changeCurrentWorkDir(char *arg[]){
+	DIR *d;
+	struct dirent *dir;
+	d = opendir(arg[1]);
+	if(d == NULL){
+		printf("Folder not found.\n");
+		return;
+	} else {
+		chdir(arg[1]);
+	}
+	closedir(d);
+}