Added groups & permissions. Fixed TTS user creation. Better connection handling. Fixed 7tv reconnection.

Chat/Commands/Parameters/SimpleListedParameter.cs

@@ -0,0 +1,17 @@
+namespace TwitchChatTTS.Chat.Commands.Parameters
+{
+    public class SimpleListedParameter : ChatCommandParameter
+    {
+        private readonly string[] _values;
+
+        public SimpleListedParameter(string[] possibleValues, bool optional = false) : base("TTS Voice Name", "Name of a TTS voice", optional)
+        {
+            _values = possibleValues;
+        }
+
+        public override bool Validate(string value)
+        {
+            return _values.Contains(value.ToLower());
+        }
+    }
+}