Issue #25: Implemented function CopyTicks. Used json request

MtApi5/CopyTicksFlag.cs

@@ -0,0 +1,9 @@
+namespace MtApi5
+{
+    public enum CopyTicksFlag
+    {
+        Info    = 1, // ticks with Bid and/or Ask changes
+        Trade   = 2, // ticks with changes in Last and Volume
+        All     = -1 // all ticks
+    }
+}