xvs version bump

xvs version bump (vmxnet3 issues) and removing log/slog dependency

Tunnel options, xvs version bump

Layer 3/IPv6 version of XVS library now used

ICMP unreachable default behaviour changed

bumped xvs version to fix a bug

Bump libbpf to v1.5.0

modified flags to work better with stayinalived

capricious flag/config file changes

code moved to library portion from main