Add device status to hub service

Hub/Service/Hubs/DeviceStatusHub.cs

@@ -0,0 +1,19 @@
+using JetBrains.Annotations;
+using Microsoft.AspNetCore.SignalR;
+using System;
+using System.Threading.Tasks;
+
+namespace ChrisKaczor.HomeMonitor.Hub.Service.Hubs
+{
+    [UsedImplicitly]
+    public class DeviceStatusHub : Microsoft.AspNetCore.SignalR.Hub
+    {
+        [UsedImplicitly]
+        public async Task SendLatestStatus(string message)
+        {
+            Console.WriteLine(message);
+
+            await Clients.Others.SendAsync("LatestStatus", message);
+        }
+    }
+}