Message transactions mortality (#1191)

* transactions mortality in message and complex relays

* logging + enable in test deployments

* spellcheck

* fmt

bridges/relays/utils/src/lib.rs

@@ -16,6 +16,7 @@
 
 //! Utilities used by different relays.
 
+pub use bp_runtime::HeaderId;
 pub use error::Error;
 pub use relay_loop::{relay_loop, relay_metrics};
 
@@ -103,10 +104,6 @@ macro_rules! bail_on_arg_error {
 	};
 }
 
-/// Ethereum header Id.
-#[derive(Debug, Default, Clone, Copy, Eq, Hash, PartialEq)]
-pub struct HeaderId<Hash, Number>(pub Number, pub Hash);
-
 /// Error type that can signal connection errors.
 pub trait MaybeConnectionError {
 	/// Returns true if error (maybe) represents connection error.