feat: add classes for UDMApi state document

src/PepperDash.Essentials.Core/UDMApi/DeviceStatus.cs

@@ -0,0 +1,34 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using Newtonsoft.Json;
+
+namespace PepperDash.Essentials.Core.UDMApi
+{
+    internal class DeviceStatus
+    {
+        [JsonProperty("label")]
+        public string label { get; set; }
+
+        [JsonProperty("status")]
+        public string status { get; set; }
+
+        [JsonProperty("description")]
+        public string description { get; set; }
+
+        [JsonProperty("videoSource")]
+        public string videoSource { get; set; }
+
+        [JsonProperty("audioSource")]
+        public string audioSource { get; set; }
+
+        [JsonProperty("usage")]
+        public int usage { get; set; }
+
+        [JsonProperty("error")]
+        public string error { get; set; }
+    }
+
+}