Changes at "Add start/end time in Consultations"

**Is your feature request related to a problem? Please describe.**

While setting up a Consultation, you are only requested to add a start/end day.

It would be useful to also add a duration or start/end time, as you can find in Meetings component.

Some organizations want to use Consultations during their meetings or assamblies to take decisions, and that's why it's need that consultations can be active only during a certain time, not all day. 

**Describe the solution you'd like**

Add Start Time field and End Time field next to the Voting begins and Voting ends fields in Consutatiols config.

The time can go between 00:00 to 23:59. 

(I share the current consultation time fields, where you can see that only is requested a begin/ending date).

**Does this issue could impact on users private data?**

No

**Funded by**

AFFAC