Added int parser

Author: ajgorhoe

src/IGLib.Core/Console/Validation/Implementations/StringParsing/StringParserProvider.cs

@@ -26,6 +26,9 @@ private static object GetParser(Type targetType, IFormatProvider formatProvider)
             if (targetType == typeof(bool))
                 return new BooleanStringParser();
 
+            if (targetType == typeof(int))
+                return new Int32StringParser(formatProvider);
+
 
 
             throw new NotSupportedException(