Implement ability for mysqlslap to generate load from a slow query log or general query log

Some users think it would be useful if mysqlslap had the ability to generate its load test from a slow query log or general query log.

This is similar to what Percona Playback supposedly does:

https://www.percona.com/downloads/Percona-Playback/

https://github.com/Percona-Lab/query-playback

https://www.percona.com/blog/2012/10/25/replaying-database-load-with-percona-playback/

This probably isn't a high priority feature, but maybe it would be useful enough to implement as a GSOC project or something?