Socket routing improvements, unit test cleanup (#276)

Updated WebSocket message routing improving performance for scenarios with multiple different subscriptions and topics
Added AddCommaSeparated helper for Enum value arrays to ParameterCollection
Improved EnumConverter performance and removed string allocation for happy path
Fixed CreateParamString extension method for ArrayParametersSerialization.Json
Fixed Shared GetOrderBookOptions and GetRecentTradeOptions base validations not being called

CryptoExchange.Net.UnitTests/Implementations/TestSubscription.cs

@@ -0,0 +1,50 @@
+using CryptoExchange.Net.Objects;
+using CryptoExchange.Net.Objects.Sockets;
+using CryptoExchange.Net.Sockets;
+using CryptoExchange.Net.Sockets.Default;
+using CryptoExchange.Net.Sockets.Default.Routing;
+using Microsoft.Extensions.Logging;
+using System;
+using System.Collections.Generic;
+using System.Reflection.Metadata;
+using System.Text;
+
+namespace CryptoExchange.Net.UnitTests.Implementations
+{
+    internal class TestSubscription<T> : Subscription
+    {
+        private readonly Action<DataEvent<T>> _handler;
+        private bool _subQuery;
+
+        public TestSubscription(ILogger logger, Action<DataEvent<T>> handler, bool subQuery, bool authenticated) : base(logger, authenticated, true)
+        {
+            _handler = handler;
+            _subQuery = subQuery;
+
+            MessageRouter = MessageRouter.CreateWithoutTopicFilter<T>("test", HandleUpdate);
+        }
+
+        protected override Query? GetSubQuery(SocketConnection connection)
+        {
+            if (!_subQuery)
+                return null;
+
+            return new TestQuery(new TestSocketMessage { Id = 1, Data = "Sub" }, false);
+        }
+
+        protected override Query? GetUnsubQuery(SocketConnection connection)
+        {
+            if (!_subQuery)
+                return null;
+
+            return new TestQuery(new TestSocketMessage { Id = 2, Data = "Unsub" }, false);
+        }
+
+
+        private CallResult? HandleUpdate(SocketConnection connection, DateTime time, string? originalData, T data)
+        {
+            _handler(new DataEvent<T>("Test", data, time, originalData));
+            return CallResult.SuccessResult;
+        }
+    }
+}