Add daily rollup of tables

Default tillDays value is set in AuditDBService constructor which is that of hourly. And this var is not assigned AuditDBConstants.DEFAULT_HOURLY_ROLLUP_TILLDAYS, it is assigned tillDays(which is hourly for this service) + default gap.

dailyTillDays var is required for HourlyRollupService since it is used to calculate the rollup from time. Check rollupTables method in this class.