dojo/router: pass captures as additional args to the handler

[ben hockey]

currently the captures are found on the event object passed to the handler in the evt.params array.

i'd like to suggest an enhancement to also pass those params as additional callbacks to the handler function. for example:

router.register(/^(foo)\/(bar)$/, function (evt, foo, bar) { … };

this is similar to what i've seen with django ​https://docs.djangoproject.com/en/dev/topics/http/urls/#example and sort of like what happens when you use replace on a string:

'abc'.replace(/(a)(b)(c)/, function (matched, a, b, c) { 
  console.log(arguments); 
});

[Brian Arnold]

In [31142]:

Adding parameter arguments to router callbacks, fixes #16083

[Brian Arnold]

Added this feature, along with tests for both string and regex routes. Thanks for the suggestion, neonstalwart!