Ability to rename a profile and only export a specific profile

[TimoGlastra]

It would be useful if you can choose to export only a specific profile (or a subset of profiles) when calling copyTo.

In addition, I think it would also be nice if you can rename a profile. With Indy SDK import/export you could use a different wallet id after you had exported the wallet, and currently if you do export/import with Askar it will use the same profile name.

I don't think there's a way currently to update a profile name after it has been created