move okta default event structure to details for consistency with other event structures
move okta default event structure to details for consistency with other event structures

ameihm0912/MozDef,abhijithch/MozDef,serbyy/MozDef,mozilla/MozDef,eXcomm/MozDef,DarkPrince304/MozDef,mpurzynski/MozDef,eXcomm/MozDef,eXcomm/MozDef,jeffbryner/MozDef,netantho/MozDef,jeffbryner/MozDef,526avijitgupta/MozDef,gsssrao/MozDef,serbyy/MozDef,mpurzynski/MozDef,mpurzynski/MozDef,netantho/MozDef,triplekill/MozDef,mpurzynski/MozDef,jvehent/MozDef,gsssrao/MozDef,abhijithch/MozDef,jeffbryner/MozDef,jvehent/MozDef,gsssrao/MozDef,gdestuynder/MozDef,jvehent/MozDef,triplekill/MozDef,netantho/MozDef,526avijitgupta/MozDef,gdestuynder/MozDef,Phrozyn/MozDef,DarkPrince304/MozDef,serbyy/MozDef,triplekill/MozDef,jvehent/MozDef,Phrozyn/MozDef,526avijitgupta/MozDef,DarkPrince304/MozDef,gdestuynder/MozDef,abhijithch/MozDef,mozilla/MozDef,abhijithch/MozDef,eXcomm/MozDef,ameihm0912/MozDef,gsssrao/MozDef,526avijitgupta/MozDef,gdestuynder/MozDef,Phrozyn/MozDef,jeffbryner/MozDef,Phrozyn/MozDef,ameihm0912/MozDef,mozilla/MozDef,ameihm0912/MozDef,mozilla/MozDef,serbyy/MozDef,netantho/MozDef,triplekill/MozDef,DarkPrince304/MozDef