Console route improvements

This PR attempts to finish missing features in console routes. It also extracts code responsible for parsing command line arguments into separate class under `Zend\Console` namespace. This allows using console commands without full MVC stack (even in non ZF2-based projects), for instance:

```php
use Zend\Console\ConsoleRouteMatcher;

array_shift($argv);
$matcher = new ConsoleRouteMatcher("action [--verbose|-v] <param>");
$matches = $matcher->match($argv);
print_r($matches);
```

ConsoleRouteMatcher is now used internally by `Zend\Mvc\Router\Console\Simple`.