cleanup and add as github action #272

	name: CI
	on: [ push, pull_request ]
	jobs:
	check-license:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout
	uses: actions/checkout@v4
	- name: Check for ZDNS License Header
	run: \|
	export NO_HEADERS_FOUND=$(grep -RiL --include=".go" "ZDNS Copyright . Regents of the University of Michigan" ./)
	if test -n "$NO_HEADERS_FOUND"; then
	echo 'FOUND .go FILES WITHOUT HEADERS.'
	echo "$NO_HEADERS_FOUND"
	exit 1
	else
	echo 'All .go files in repo have an appropriate header'
	fi
	build-and-test:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout
	uses: actions/checkout@v4
	- name: Setup Go
	uses: actions/setup-go@v5
	with:
	go-version: '1.20'
	- name: Build
	run: \|
	go version
	make
	- name: Unit Tests
	run: go test -v ./...
	- name: Integration Tests
	run: \|
	sudo rm /etc/resolv.conf
	sudo ln -sf /run/systemd/resolve/resolv.conf /etc/resolv.conf
	python --version
	./testing/integration_tests.py
	build-and-test-top-1k:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout
	uses: actions/checkout@v4
	- name: Setup Go
	uses: actions/setup-go@v5
	with:
	go-version: '1.20'
	- name: Build
	run: \|
	go version
	make
	- name: Large-Scale Integration Test
	run: \|
	python --version
	./testing/large_scale_integration_test.py

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