Add columns to CalendarContract

isPrimary to Calendars
        /**
         * Is this the primary calendar for this account. If this column is not explicitly set, the
         * provider will return 1 if {@link Calendars#ACCOUNT_NAME} is equal to
         * {@link Calendars#OWNER_ACCOUNT}.
         */

isOrganizer to Events
        /**
         * Are we the organizer of this event. If this column is not explicitly set, the provider
         * will return 1 if {@link #ORGANIZER} is equal to {@link Calendars#OWNER_ACCOUNT}.
         * Column name.
         * <P>Type: STRING</P>
         */

Bug: 6888477
Change-Id: Ibc2b3903bc4a18fc1f0d52c1f8c897e2bac0c0d4