Secheaders

What was changed
* Support for JSON output format via `--json` flag
* Command line output improvements
* Text output stylished and aligned to be more readable
* Error messages to stderr instead of stdout
* Disable ANSI colors when output is piped to a file descriptor or `--no-color` flag enabled
* Unit tests

What was changed

This is the first official release, the project (or rather a script at the time) was initially written 8 years ago, and some random fixes made randomly after that.

Before the release in 2024, the codebase was restructured, cleaned up and linted. Also some functional improvements and bugfixes were made.