Changed command dictionary to a command tree. Fixed various requests. OBS reconnection added if identified previously.

Chat/Commands/Parameters/CommandParameter.cs

@@ -0,0 +1,20 @@
+namespace TwitchChatTTS.Chat.Commands.Parameters
+{
+    public abstract class CommandParameter : ICloneable
+    {
+        public string Name { get; }
+        public bool Optional { get; }
+
+        public CommandParameter(string name, bool optional)
+        {
+            Name = name;
+            Optional = optional;
+        }
+
+        public abstract bool Validate(string value);
+
+        public object Clone() {
+            return (CommandParameter) MemberwiseClone();
+        }
+    }
+}