Implement support for PSR-3 compliant loggers

Hi,

I would like to suggest implementing support for [PSR-3](https://www.php-fig.org/psr/psr-3/) compliant loggers. This way PHP libraries like [Monolog](https://github.com/Seldaek/monolog/) or (in my particular case) [WC_Logger](https://docs.woocommerce.com/wc-apidocs/class-WC_Logger.html) from WooCommerce could be used for better integration with web applications.