ENH: Print the table column names every 50 rows
ENH: Print the table column names every 50 rows

The number of event rows that are printed before the table
header repeats. The default value of '50' is modifiable via
LiveTable.print_header_interval

ericdill/bluesky,ericdill/bluesky,klauer/bluesky,sameera2004/bluesky,dchabot/bluesky,sameera2004/bluesky,dchabot/bluesky,klauer/bluesky