Support transferring X.509 certificates to the remaining card slots

* Write X.509 certificates for the PIV Authentication key and the Card
  Authentication key.
* Add a confirmation dialog.

GnuPG-bug-id: 4794
2 jobs for master in 47 minutes and 54 seconds (queued for 48 minutes and 6 seconds)
Status Job ID Name Coverage
  Build
passed #68080
build_clazy_clang_tidy

00:26:43

passed #68079
linux kf5-qt5 qt5.12

00:21:10

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