clean up repo

[briandrawert]

• move all notebooks/mdl/jobs
• remove un-zipped project
• add zipped project
• add "open.stochss.org" links for all files to the README.md (tokens will be an issue while the repo is private)
  • Pre-Vaccination model
  • Vaccination model
  • Parameter approximation notebook
  • Model inference notebook
  • Vaccination notebook with sliders
  • Vaccination parameter sweep job