[Console] added a better way to ask questions to the user
[Console] Add docblocks and unit tests to QuestionHelper
feature #10606 [Console] added a better way to ask questions to the user (fabpot, romainneutron)

This PR was merged into the 2.5-dev branch.

Discussion
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[Console] added a better way to ask questions to the user

| Q             | A
| ------------- | ---
| Bug fix?      | no
| New feature?  | yes
| BC breaks?    | no
| Deprecations? | yes
| Tests pass?   | yes
| Fixed tickets | n/a
| License       | MIT
| Doc PR        | not yet

This PR replaces #9811

- [x] add missing phpdocs
- [x] add unit tests
- [ ] submit doc PR

Commits
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336bba2 [Console] Add docblocks and unit tests to QuestionHelper
c413f89 [Console] added a better way to ask questions to the user