Fix TypeConverter for IComponent (dotnet/corefx#40837)

Commit migrated from dotnet/corefx@3cc1808

src/libraries/System.ComponentModel.TypeConverter/src/System/ComponentModel/ReflectTypeDescriptionProvider.cs

@@ -136,6 +136,7 @@ internal ReflectTypeDescriptionProvider()
             //
             [typeof(Array)] = typeof(ArrayConverter),
             [typeof(ICollection)] = typeof(CollectionConverter),
+            [typeof(IComponent)] = typeof(ComponentConverter),
             [typeof(Enum)] = typeof(EnumConverter),
             [s_intrinsicNullableKey] = typeof(NullableConverter),
         });