vCard Support

Adds integrated support for reading VCARD data.

Included functions:

```
card.getUID()
card.getFirstName()
card.getLastName()
card.getName()
card.getEmails()
card.getTelephoneNumbers()
card.getBirthday()
```

Includes tests, docs

----

Fixes issues with `isMultiProperty` by parsing all properties as multi-properties

Includes updated tests for this