add documentation for file_io files

core/include/aare/core/DType.hpp

@@ -1,5 +1,4 @@
 #pragma once
-#include "aare/utils/logger.hpp"
 #include <cstdint>
 #include <string>
 #include <typeinfo>

core/src/DType.cpp

@@ -1,5 +1,7 @@
 
 #include "aare/core/DType.hpp"
+#include "aare/utils/logger.hpp"
+
 #include <fmt/format.h>
 
 namespace aare {