add redirectRoute and redirectAction helpers

[faustbrian]

1️⃣ Is this something that is wanted/needed? Did you create a feature-request issue first?
Yes https://github.com/calebporzio/livewire/issues/140

2️⃣ Does it contain multiple, unrelated changes? Please separate the PRs out.
No

3️⃣ Does it include tests if possible? (Not a deal-breaker, just a nice-to-have)
Yes

4️⃣ Please include a thorough description of the feature/fix and reasons why it's useful.
Adds the redirectRoute and redirectAction methods to provide a more convenient way of redirecting from inside components.

Route

// Before
$this->redirect(route('home'));

// After
$this->redirectRoute('home');

Action

// Before
$this->redirect(action('HomeController@index'));

// After
$this->redirectAction('HomeController@index');

Under the hood it supports the same arguments as the route and action functions.

5️⃣ Thanks for contributing! 🙌

[calebporzio]

Good PR, thanks!

[lancepioch]

@all-contributors please add @faustbrian for code

[allcontributors]

@lancepioch

I've put up a pull request to add @faustbrian! 🎉