Allow try_from_row to work with &Row

[AlexPikalov]

As of now try_from_raw works with Row and doesn't accept references.

In this issue we need to provide such possibility.

[ctopher7]

hi @AlexPikalov is there any trait that I could use so my I could call .try_from_row()? thanks

example:

fn query (some_struct : impl Trait){
--- inside for loop after get the data from db ---
  let my_row = some_struct.try_from_row(row).unwrap();
}