Save the fact that content is an ical content

[axi]

The parser does already the job, so we can use it to "validate" it's really an ical content.

[axi]

Hey @u01jmg3, could you check this PR ? Thanks

[axi]

just thinking about this, I'm using the parser in a loop and before passing it a new url to parse, I have to

                // Reset from potential previous iteration
                $ical->cal = [];
                $ical->isIcalContent = false;

Should'nt that be in a new reset() method ? I can update the PR (or create a new one probably)

[u01jmg3]

I've sat on this one for a bit and I don't think knowing that a file starts with BEGIN:VCALENDAR is enough to say you've validated it as iCal content.

I think if you need this in your code you should track it yourself.

[axi]

Ok. For reference, this would probably be the minimum for validating a ical content: https://stackoverflow.com/a/67698638/2454746