Add AUTHORS file
Add AUTHORS file

Change-Id: I282a1513d228d12957f90b39943968103e9c5f01

crobby/sahara-image-elements,openstack/sahara-image-elements,bigfootproject/sahara-image-elements,openstack/sahara-image-elements,bigfootproject/sahara-image-elements,uladz/sahara-image-elements,uladz/sahara-image-elements,crobby/sahara-image-elements