Formatted display of a table in c.
Based on Stevan Apter's show function in k: https://nsl.com/k/show.k
Ex:
name age city state score
----- --- ------------- ----- -----
Alan 32 New York NY 4
Bob 25 San Francisco CA 3.9
Cindy 37 Dallas TX 3.2
Dave 49 Honolulu HI 4
Edith 19 Los Angeles CA 3