Added a CSV export Form with a link to it on the report page
The form takes the start date and end date for the shift data to be
generated.
REFS SDEV-285
Export form is able to process data according to in-date and out-date
Added Datepicker Widget to start and end date input fields in export forms
Added day report csv exporter
Fixes SDEV-280
FIXES SDEV-309
Reformatted CSV data, added new field and fixed nonetype bug