[2.2][HttpFoundation][RedirectResponse] Added refresh timeout support

| Q             | A
| ------------- | ---
| Bug fix?      | no
| New feature?  | yes
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | 
| License       | MIT
| Doc PR        | 

This little patch give the ability to specify a latency before the redirect.
It's a minor feature that affects only browser's behavior, but helps in some simple situations (e.g. refresh the same page after 10s) without using JavaScript.

This patch can also be safely applied both on master and 2.3 branch.

If needed I can provide English and Italian documentation.