[FEATURE] Improve whitelisting support

[aran112000]

If you've got a whitelist rule that should only apply to a single domain or user agent string perhaps...

[aran112000]

The default whitelists extracted to settings.json for IPs and user agents, also the new fluent API allows you to provide a closure that'll be applied for each log line to specify if you wish to whitelist it make it more modular - here's an example of this in action:

(new Log('path_to_file.log'))
    ->whitelist(function (LogLine $logLine) {
        if ($logLine->getUri() === '/whitelisted-uri') {
            return 'This is an allowed URI example';
        }

        return false;
    })
    ->....