Creation of basic objects. Still missing a lot of fields but first concepts can be implemented and tested
- account has membership object that holds most of the new fields and the career steps (aka jobs)
- new fields and job's subquery are integrated and are working
- User object gets membership role if appropriate

TODO:
- integrate all missing fields
- think about reducing subquery in account query (is now fetching all account data, all ep data and all job data. Job data also needs subquery for team leader field!)
  --> maybe only fetch most important info and do more accurate query only if needed