Added projects MtApi4 and MtApi5

MTApiService/MtMqlBookInfo.cs

@@ -0,0 +1,21 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Runtime.Serialization;
+
+namespace MTApiService
+{
+    [DataContract]
+    public class MtMqlBookInfo
+    {
+        [DataMember]
+        public int type { get; set; }
+
+        [DataMember]
+        public double price { get; set; }
+
+        [DataMember]
+        public long volume { get; set; }  
+    }
+}