Support for additional properties in calendar and event properties

[joariasl]

Add the support for passing direct property params to an event or calendar. For add more possibilities of the standard: https://tools.ietf.org/html/rfc5545

For example:

var events = [
    {
        uid: '-UnitID-123456',
        title: 'Event 123456',
        created: '',// Not implemented yet
        start: [2018, 1, 15, 2, 30],
        end: [2018, 1, 17, 2, 30],
        description: 'Event description',
        additionals: [
           // For add in VEVENT: 'CREATED:20171019T171332Z'
           {
               attribute: 'CREATED',
               value: '20171019T171332Z'
           } 
    }
];
var properties = {
    productId: `-//Product//Unique-ID-1//EN`
};
ics.createCalendar(events, properties, callback);

[lukesolar]

Have calendar properties been implemented or considered?
I'm looking for a way to add:
BEGIN:VCALENDAR
...
NAME:Testing
X-WR-CALNAME:Testing
DESCRIPTION:Testing
X-WR-CALDESC:Testing
...
This way the user does not need to invent a name for the calendar themselves when they add it to Google Calendar (an awkward URL name is the default) and Apple Calendar (requires input).