Rewrite CardKeysView to display all card keys + certificates
The new card key/certificate table replaces the S/MIME-only table used for
NetKey cards and PKCS#15 cards and the OpenPGP key view used for PKCS#15
cards.
(cherry picked from commit f6cc36e116cf4ae50a58158ef82fda15c797fbd8)
- GnuPG-bug-id: T7018