fix: open file as binary-mode #16

to avoid inconsistency between file size (obtained by tellg) and the
size of the actual contents that would be read later

toml/parser.hpp

@@ -1517,7 +1517,7 @@ inline table parse(std::istream& is, std::string fname = "unknown file")
 
 inline table parse(const std::string& fname)
 {
-    std::ifstream ifs(fname.c_str());
+    std::ifstream ifs(fname.c_str(), std::ios_base::binary);
     if(!ifs.good())
     {
         throw std::runtime_error("toml::parse: file open error -> " + fname);