Django-slick-reporting

- Added missing prefix on integrity hash (squio)

- Enhanced Field prepare flow
- Add traversing for group_by
- Allowed tests to run specific tests instead of the whole suit
- Enhanced templates structure for easier override/customization

- Enhanced Time Series Plot total HighChart by accenting the categories
- Enhanced the default verbose names of time series.
- Expanding test coverage

- Allow for time series to operate on a non-group by report
- Allow setting time series custom dates on ReportGenerator attr and init
- Fix a bug with setting the queryset (but not the report model) on SlickReportView
- Fixed an issue if GenericForeignKey is on the report model
- Fixed an issue with Time series annual pattern

- Created the demo site https://django-slick-reporting.com/
- Add support to group by date field
- Add `format_row` hook to SlickReportingView
- Add support for several chart engine per same report
- Add `SLICK_REPORTING_FORM_MEDIA` &`SLICK_REPORTING_DEFAULT_CHARTS_ENGINE` setting.
- Documenting SlickReportView response structure.
- Fix issue with special column names `__time_series__` and `__crosstab__`
- Fix issue with Crosstab reminder option.

- Properly initialize Datepicker (12 squio)
- Use previous date-range for initialization if it exists