Add tutorial for general new users
Created by: SmithRWORNL
All of our current tutorial materials (e.g. for XSEDE), are written from the assumption that the reader will have our tutorial specific version of ICE with all required data files and programs and a pre-populated workspace on one of our USB sticks.
We need a more universal tutorial that explains to someone on their own computer and using nothing but generally available resources online how to download ICE, import the repo, download third party programs like VisIt, etc. so that we have somewhere to point people who want to get started with the latest version of ICE instead of whatever we had prepared the last time we did a formal tutorial.