CustomUIElements
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Demonstrates customizing of a Time Ruler and IntervalAppointmentTemplate.

The Window1 resources contain definition of a custom IntervalAppointmentTemplate. 
The C1Scheduler.IntervalAppointmentTemplate property is set to the custom template.
C1Scheduler resources contain DataTemplate with a "C1Scheduler_TimeRuler_Template" key.
This template replaces default time ruler template with the same key.
