transposeResultToNullable
Transposes a Result of an Nullable<T> into an Nullable<T> of a Result.
Ok(T)->Ok(T)Ok(null)->nullErr(E)->Err(E)
Transposes a Result of an Nullable<T> into an Nullable<T> of a Result.
Ok(T) -> Ok(T)Ok(null) -> nullErr(E) -> Err(E)