refactor(dmq): move 'consumer' in 'client' sub-module

Author: jpraynaud

internal/mithril-dmq/src/consumer/interface.rs renamed to internal/mithril-dmq/src/consumer/client/interface.rs

@@ -0,0 +1,5 @@
+mod interface;
+mod pallas;
+
+pub use interface::*;
+pub use pallas::*;

internal/mithril-dmq/src/consumer/client/mod.rs

@@ -1,5 +1,3 @@
-mod interface;
-mod pallas;
+mod client;
 
-pub use interface::*;
-pub use pallas::*;
+pub use client::*;