[Console] improve deprecation warning triggers

| Q             | A
| ------------- | ---
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | #12771, #12791
| License       | MIT
| Doc PR        |

Since the default helper set of the Console `Application` relies on
the `DialogHelper`, the `ProgressHelper` and the `TableHelper`, there
must be a way to not always trigger `E_USER_DEPRECATION` errors when
one of these helper is used.
No, the real issue is that all three helper instances are created when the default helper set is built in the application (see https://github.com/symfony/symfony/blob/2.7/src/Symfony/Component/Console/Application.php#L949-960). Triggering there results in warnings for every user using the `Application` whether or not they are using the deprecated helpers (this is why #12771 and #12791 have been opened).