HAProxy Lua module 1.1.0

Add support for lua-socket to increase timestamp accuracy from seconds to milliseconds
Expose variables txn.dd.ptime and txn.dd.ttime for logging, respectively for processing time of the module and total time spent (processing + round trip with Protection API)
Update payload truncation to follow recommendations for the Protection API
Add restore_referrer option to restore Referer header on requests when the original value is replaced by the browser after a challenge
Fix function to retrieve cookie header
Fix field value for ServerName
Fix URL with query params in payload