bulk_create sets primary keys on created objects

Addresses #19527
Changes to make django create a schema if one is specified in DjangoTestSuiteRunner.setup_databases
Merge branch 'acrefoot-bulk_create_with_id-1.5.1' of github.com:acrefoot/django into acrefoot-bulk_create_with_id-1.5.1

Conflicts:
	django/db/models/query.py