Fix date-type column formatting

[DeflateAwning]

Original PR: adamviola#27

Added Luxon library, which is a dependency of Tabulator for formatting dates, and a simple formatter that outputs DATE columns as "yyyy-MM-dd" in UTC. If necessary, the timezone could be made configurable via extension settings, but I didn't get to that.

Resolves adamviola#17

Test case:

SELECT 
    12 AS random_number,
    DATE '2024-09-22' AS arbitrary_date,
    TIMESTAMP '2024-09-22 15:30:00' AS arbitrary_datetime,
    TIMESTAMP '2024-09-22 00:00:00' AS datetime_with_0_time_should_show_as_full_datetime;