gcr: Expose some more API to allow showing a GcrCertificate
I've been trying to make some progress with the Seahorse GTK4 port, and I've found that I needed more APIs from GcrCertificate now that we no longer have GcrUi to take care of that.
I've been trying to make some progress with the Seahorse GTK4 port, and I've found that I needed more APIs from GcrCertificate now that we no longer have GcrUi to take care of that.