implement /regenerate feature for Apikey
implement /regenerate feature for Apikey

Fix T41

Signed-off-by: Thore Boedecker <b1c1d8736f20db3fb6c1c66bb1455ed43909f0d8@foxxx0.de>

vhost-api/vhost-api,vhost-api/vhost-api,vhost-api/vhost-api