BFE v1.6.0

Added

• Allow user to disable monitor port (Issue #936)
• Support HTTP2 fingerprint (Issue #1071)
• Documents optimization

Changed

• Optimize idle connection handling (Pull #1044)
• Performance optimize in smooth least connection balancing algorithm(Pull #1062)
• Miscellaneous golang dependency updates
• Miscellaneous improvements in makefile and other CI tools

Fixed

• mod_trust_clientip: fix incorrect private IP address range (Issue #856)
• arm build error in golang 1.18