Add permission filtering the API

[oliverroick]

For the QGIS plugin we need additional filtering of list views based on permissions.

Task list

• GET /api/v1/organizations?permissions=project.create
  • Extend the view to read the permissions attribute
  • Add queryset filtering based on required permissions
  • Add view test to test correct filtering
• GET /api/v1/projects?permissions=project.download,party.create,spatial.create
  • Extend the view to read the permissions attribute
  • Add queryset filtering based on required permissions
  • Add view test to test correct filtering

[wonderchook]

@oliverroick this is closed but the individual tasks aren't checked off. Is it done?

[oliverroick]

@wonderchook Yes, it's done. It was merged via #694