Much refactoring

hecl/lib/WideStringConvert.cpp

@@ -0,0 +1,20 @@
+#include "HECL.hpp"
+#include <locale>
+#include <codecvt>
+
+namespace HECL
+{
+
+std::string WideToUTF8(const std::wstring& src)
+{
+    std::wstring_convert<std::codecvt_utf8<wchar_t>> conv;
+    return conv.to_bytes(src);
+}
+
+std::wstring UTF8ToWide(const std::string& src)
+{
+    std::wstring_convert<std::codecvt_utf8<wchar_t>> conv;
+    return conv.from_bytes(src);
+}
+
+}