xvs code rework

xvs code reworked to satisfy later ebpf verifier

CUE changes

v0.2.3

logging cleanup and code re-org. experiment syslog added

VIP state duration

v0.2.2

added vip state duration and a rather naff logo/favicon

BGP state duration on console

v0.2.1

prometheis prefix, makefule tweaks, BGP state duration

NEW VERSION based on cue and xvs libraries

eBPF/XDP load balancing component has beed split out to a separate library (xvs)

BGP, service monitoring and control of the the load-balancer engine has been split out to a load balancer director library (cue)

Some basic external logging/alertning has been added (t Elastisearch and Slack/Teams)

Config file and command line flags have changed significantly.

SYN and BGP fixes

SYN code reimplemented
BGP pool neglected to withdraw a VIP if the VIP was removed from config - fixed

SYN bug fix

SYN bug fix

Session state sharing added

Session state sharing with multicast

Flow state table LRU hash fix

flow_state map was defined as BPF_MAP_TYPE_HASH rather than BPF_MAP_TYPE_LRU_HASH causing flows not to be tracked.

Prometheus metrics update

Prometheus metrics update - JS fix