- Adds fixtures to `test/io/fixtures.sql` to test resource
embedding related queries.
- Moves the resource embedding related tests that no longer
require big schema from `test_big_schema.py` to `test_io.py`.
Closes #4417.
Signed-off-by: Taimoor Zaeem <taimoorzaeem@gmail.com>
(cherry picked from commit 91abcd49e1)