[WIP][Form] Add TelType

| Q             | A
| ------------- | ---
| Bug fix?      | no
| New feature?  | yes
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | https://github.com/symfony/symfony/issues/8026
| License       | MIT
| Doc PR        | no
This rendering should reuse the ``form_widget_simple`` block instead of duplicating it (look at ``url_widget`` and ``text_widget`` for instance)