Implemented functions ChartTimePriceToXY, ChartXYToTimePrice (MT5)

MtApi5/Requests/ChartTimePriceToXyRequest.cs

@@ -0,0 +1,16 @@
+using System;
+
+namespace MtApi5.Requests
+{
+    internal class ChartTimePriceToXyRequest : RequestBase
+    {
+        public override RequestType RequestType => RequestType.ChartTimePriceToXY;
+
+        public long ChartId { get; set; } 
+        public int SubWindow { get; set; }
+        public DateTime? Time { get; set; }
+        public double Price { get; set; }
+
+        public int MtTime => Mt5TimeConverter.ConvertToMtTime(Time);
+    }
+}

MtApi5/Requests/ChartTimePriceToXyResult.cs

@@ -0,0 +1,9 @@
+namespace MtApi5.Requests
+{
+    internal class ChartTimePriceToXyResult
+    {
+        public bool RetVal { get; set; }
+        public int X { get; set; }
+        public int Y { get; set; }
+    }
+}

MtApi5/Requests/ChartXyToTimePriceRequest.cs

@@ -0,0 +1,13 @@
+using System;
+
+namespace MtApi5.Requests
+{
+    internal class ChartXyToTimePriceRequest : RequestBase
+    {
+        public override RequestType RequestType => RequestType.ChartXYToTimePrice;
+
+        public long ChartId { get; set; }
+        public int X { get; set; }
+        public int Y { get; set; }
+    }
+}

MtApi5/Requests/ChartXyToTimePriceResult.cs

@@ -0,0 +1,14 @@
+using System;
+
+namespace MtApi5.Requests
+{
+    internal class ChartXyToTimePriceResult
+    {
+        public bool RetVal { get; set; }
+        public int SubWindow { get; set; }
+        public DateTime? Time => Mt5TimeConverter.ConvertFromMtTime(MtTime);
+        public double Price { get; set; }
+
+        public int MtTime { get; set; }
+    }
+}

MtApi5/Requests/RequestType.cs

@@ -12,6 +12,8 @@ namespace MtApi5.Requests
         OrderCheck          = 5,
         MarketBookGet       = 6,
         IndicatorCreate     = 7,
-        SymbolInfoString    = 8
+        SymbolInfoString    = 8,
+        ChartTimePriceToXY  = 9,
+        ChartXYToTimePrice  = 10
     }
 }