Add connected controllers hashmap for controller-ws

emgauwa-lib/src/types/mod.rs

@@ -1,5 +1,12 @@
 mod controller_uid;
 mod schedule_uid;
 
+use crate::models::Controller;
+
 pub use controller_uid::ControllerUid;
 pub use schedule_uid::ScheduleUid;
+
+use std::collections::HashMap;
+use std::sync::{Arc, Mutex};
+
+pub type ConnectedControllersType = Arc<Mutex<HashMap<ControllerUid, Controller>>>;