add a country to each nren and remove a few nrens in the data migration

compendium_v2/db/model.py

...m_v2/migrations/versions/049353edaa79_add_nren_country.py

compendium_v2/routes/budget.py

compendium_v2/routes/charging.py

compendium_v2/routes/ec_projects.py

compendium_v2/routes/funding.py

compendium_v2/routes/organization.py

compendium_v2/routes/policy.py

compendium_v2/routes/staff.py

test/conftest.py

test/test_survey_publisher_2022.py

test/test_survey_publisher_v1.py