Create user-import-export.md
Create user-import-export.md

Added a documentation for the extension Users Import / Export
khorne3/docs,yvonnewilson/docs,hamzawi06/docs,jeffreylees/docs,khorne3/docs,yvonnewilson/docs,yvonnewilson/docs,sandrinodimattia/docs,auth0/docs,sandrinodimattia/docs,auth0/docs,Catografix/docs,Annyv2/docs,Annyv2/docs,jeffreylees/docs,auth0/docs,hamzawi06/docs,hamzawi06/docs,Catografix/docs,jeffreylees/docs,sandrinodimattia/docs,Annyv2/docs,khorne3/docs,Catografix/docs