Ref: OM10 / DECOM-32

Depends on #7894
This issue is part of #7723

In order to have poll in meetings an admin should be able to create the following types of questions:

• As an administrator, it would allow me to configure only two types of answers: Single or Multiple options (Checkboxes or Radio buttons), we will not allow free texts.
• As an administrator, in the cases of Multiple options answers, I can also configure "Maximum number of choices"
• Questions created will remain unpublished. Admins will be able to publish them in the frontend / in the admin interface