fix of random

Qwirkle/QwirkleClassLibrary/Game.cs

@@ -5,6 +5,7 @@ using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
 using System.Xml.Linq;
+using System.Security.Cryptography;
 
 namespace QwirkleClassLibrary
 {
@@ -82,8 +83,7 @@ namespace QwirkleClassLibrary
             {
                 for (int j = 0; j < 6; j++)
                 {
-                    Random random = new Random();
+                    int val = RandomNumberGenerator.GetInt32(0, bag.TilesBag.Count);
-                    int val = random.Next(0, bag.TilesBag.Count);
 
                     p.AddTileToPlayer(bag.TilesBag[val]);
                     bag.RemoveTileInBag(bag.TilesBag[val]);