Add new format in the forgotten password feature for the user search form.

[PierreUNIGE]

Is your feature request related to a problem? Please describe.
With the forgotten password feature, it is possible to add attributes on the user search form. when we add a new item, it is not possible to choose the format of this item ie. only text field. We use the date of birth to search user and a lot of times, users enter the date in wrong format even if an example is listed just above the field.

Describe the solution you'd like
It would be great to implement the same parameters as in the New registration User Form and choose the format of the item. For exemple, to add a select field instead of simple text field. With this option, user don't have to think on the format of the field and just choose a number in a list. The must would be to add a date format for a field.

Describe alternatives you've considered
For the moment, to add date in the right format, we will add 3 items: day, month and year and not only one item.