[oden][oden-js] Rework modules

Damn this is a lot

oden-js/src/conversion/into.rs

@@ -118,6 +118,7 @@ impl TryIntoValue for Error {
             Error::RustFunctionError(e) => Err(Error::RustFunctionError(e)),
             Error::Exception(v, d) => Err(Error::Exception(v.dup(ctx), d)),
             Error::OutOfMemory => Err(Error::OutOfMemory),
+            Error::IOError(e) => Err(Error::IOError(e)),
         }
     }
 }