🐛Fix crashing if filter sends an IOException.

DiscImageChef.Filters/Filters.cs

@@ -32,6 +32,7 @@
 
 using System;
 using System.Collections.Generic;
+using System.IO;
 using System.Linq;
 using System.Reflection;
 using DiscImageChef.Console;
@@ -66,9 +67,10 @@ namespace DiscImageChef.Filters
         /// <param name="path">Path</param>
         /// <returns>The filter that allows reading the specified path</returns>
         public IFilter GetFilter(string path)
+        {
+            try
             {
                 IFilter noFilter = null;
-
                 foreach(IFilter filter in Filters.Values)
                     if(filter.Id != new Guid("12345678-AAAA-BBBB-CCCC-123456789000"))
                     {
@@ -81,7 +83,8 @@ namespace DiscImageChef.Filters
 
                         if(foundFilter?.IsOpened() == true) return foundFilter;
                     }
-                else noFilter = filter;
+                    else
+                        noFilter = filter;
 
                 if(!noFilter?.Identify(path) == true) return noFilter;
 
@@ -89,6 +92,8 @@ namespace DiscImageChef.Filters
 
                 return noFilter;
             }
+            catch(IOException) { return null; }
+        }
 
         /// <summary>
         ///     Gets all known filters