update dependencies

add nix repo, update dependencies

update dependencies

add ability to define output files thanks to @ramazansancar

update to go 1.19, apply some request modifiers to initial sitemap fetch

upgrade to go 1.18, update dependencies, update container base image

add ability to set http basic auth for requests, update to go 1.15 an…

…d update dependencies

add ability to convert sitemaps into url lists

add deb/rpm builds, more tests

fix bug that caused logs to be empty and bug that caused docker image…

… to not be able to resolve HTTPS