People: accept attribute values in arguments for new Person file

[humdinger]

This is hrev52662.

The Mail app has a menu "Save address" where it collects the email addresses of an email (to/from/cc/bcc) and calls the People app with that address to start a new person file with that address already filled in the EMail text box.

It does this by launching the People app with "META:email=the.selected@email.address" as an argument in ​MailWindow.cpp, line 1394ff

Unfortunately, the People app has lost that feature. It only accepts an existing Person file as argument and opens that.
It'd be nice to get that functionality back, maybe accepting more than one attribute argument (e.g. to add name + email).

Is a lost feature a bug or an enhancement...?

[humdinger]

Was fixed with hrev57375.