add InfiniteTimeSpanConverter{Test}

svn path=/trunk/mcs/; revision=52225

mcs/class/System.Configuration/System.Configuration.dll.sources

@@ -66,6 +66,7 @@ System.Configuration/GenericEnumConverter.cs
 System.Configuration/IConfigXmlNode.cs
 System.Configuration/IgnoreSection.cs
 System.Configuration/InfiniteIntConverter.cs
+System.Configuration/InfiniteTimeSpanConverter.cs
 System.Configuration/IntegerValidator.cs
 System.Configuration/IntegerValidatorAttribute.cs
 System.Configuration/InternalConfigurationFactory.cs

mcs/class/System.Configuration/System.Configuration_test.dll.sources

@@ -7,6 +7,7 @@ System.Configuration/DefaultValidatorTest.cs
 System.Configuration/ExeConfigurationFileMapTest.cs
 System.Configuration/GenericEnumConverterTest.cs
 System.Configuration/InfiniteIntConverterTest.cs
+System.Configuration/InfiniteTimeSpanConverterTest.cs
 System.Configuration/IntegerValidatorTest.cs
 System.Configuration/KeyValueConfigurationCollectionTest.cs
 System.Configuration/KeyValueConfigurationElementTest.cs