implementing StdError for tarantool::error::Error, cast to anyhow errors

[chertov]

Hi! Can't using tarantool-module errors with Anyhow.
Please, consider implementing https://doc.rust-lang.org/std/error/trait.Error.html

error[E0277]: the trait bound `tarantool::error::Error: StdError` is not satisfied
   --> src/tnt/spaces/users.rs:65:56
    |
65  |         return Ok(Some(user_tuple.into_struct::<User>()?));
    |                                                        ^ the trait `StdError` is not implemented for `tarantool::error::Error`
    |
    = note: required because of the requirements on the impl of `From<tarantool::error::Error>` for `anyhow::Error`
    = note: required because of the requirements on the impl of `FromResidual<Result<Infallible, tarantool::error::Error>>` for `Result<std::option::Option<users::User>, anyhow::Error>`

[gmoshkin]

This has been fixed in the v0.5.1 release