enhance: add FORWARD rules for IPVS FullNAT mode, improve docs and te…

…sts, bump version to 0.3.3

feat: add cleanup on exit functionality for IPVS and iptables rules, …

…bump version to 0.3.2

test: move full nat snat test to separate file

build: bump version and dependencies

feat: add UDP support for load balancing

feat: add HTTP health check support

build: add coverage target and update README docs

ci: update ci workflow script for testing commands

ci: add github workflows for ci, docker, release and dependabot confi…

…g updates