* avoid preliminary typing command lines arguments
* unit tests: Config.Get can parse and cast values
* unit tests: parse command line args and return string values
* unit test: parameter attribute converter
* merge&parse unit test
The previous impl had a restriction on types that implement IConvertible
This restriction has been lifted and another step added, this time we
search for a static function of the form Type.Parse(string) and if
found invoked using the value from configuration
Adalyat Nazirov