The current impl is broken causing massive memory allocation:

vendor/github.com/libvirt/libvirt-go/domain_events.go:340:18: type [1073741824]_Ctype_struct__virDomainEventGraphicsSubjectIdentity larger than address space
vendor/github.com/libvirt/libvirt-go/domain_events.go:340:18: type [1073741824]_Ctype_struct__virDomainEventGraphicsSubjectIdentity too large

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>