Added TTS Voice & TTS Voice State data classes. Renamed certain classes. Fixed some compiler warnings.

Requests/Messages/TTSVoiceState.cs

@@ -0,0 +1,9 @@
+namespace HermesSocketLibrary.Requests.Messages
+{
+    public class TTSVoiceState
+    {
+        public required string Id { get; set; }
+        public required string UserId { get; set; }
+        public bool Enabled { get; set; }
+    }
+}