Patch for Display hours in Calendar View Day template

HI,
I'm working on.

A peace of code in CalendarViewWeek.php

Adding patch for Hours slot with Office time.
Views config activate Hours Slot and define time.

I'm currently testing this patch. One thing that would be really nice is handling of overlapping items in the calendar. Currently they simply sit on top of each other and can completely cover each other.

I fixed an issue where the duration is wrong in case the entries don't lass full hours, but fractions such as 1 hour and 30 minutes.