Make authorization middleware crate public
Updates the authorization middleware module to be `pub(crate)` instead
of publicly visible outside the crate, since this is only used
internally by the Splinter REST API.
//! Authentication and authorization for Splinter
#[cfg(feature = "rest-api-actix")]
-pub mod actix;
+pub(crate) mod actix;
pub mod identity;
use identity::{Authorization, IdentityProvider};
