Multi school support

[mmcinnestaylor]

Background

The PCS currently treats all contest teams as affiliates of FSU. A team's organization affiliation appears as an attribute in the DOMjudge scoreboard. Implementing support by allowing registrants to select an institution affiliation during team creation will enable future contests to cater to a wider audience.

Changes

• Create a Schools model to represent an institution
  • Attrs:
    • name: ex. Florida State University
    • short_name: ex. FSU
    • country: Country code in ISO 3166-1 alpha-3 format
• Update django-import-export settings to enable School data to be uploaded within Django admin
• Add a school attribute to the Team model
  • Foreign key relationship with School model
• Update Team creation form (src/register/forms.py) to allow user to select a school
• Update the DOMjudge file creation Celery task (src/contestadmin/tasks.py) to use Team.school as a team's affiliation
  • name, short_name, country
  • The current implementation uses a hardcoded values of Florida State University, FSU, USA