Add new supervisor client over mycelium

Signed-off-by: Lee Smet <lee.smet@hotmail.com>

src/clients/mod.rs

@@ -0,0 +1,7 @@
+pub mod supervisor_client;
+
+pub use supervisor_client::{
+    Destination,
+    SupervisorClient,
+    SupervisorClientError,
+};