INTPYTHON-527 Add Queryable Encryption support

[aclark4life]

Another WIP. qe.py updated too.

With this PR, Django claims it can't run non-encrypted commands, which means maybe we can't encrypt the entire connection …

(.venv) main ~/Developer/django-mongodb-cli> dm repo test django backend_    
Copying config/django/django_settings.py to src/django/tests/mongo_settings.py
Running ./runtests.py --settings mongo_settings --parallel 1 --verbosity 3 --debug-sql --noinput backend_
Testing against Django installed in '/Users/alexclark/Developer/django-mongodb-cli/src/django/django'
Importing application backend_
Found 20 test(s).
Creating test database for alias 'default' ('test_djangotests')...
Got an error creating the test database: command not supported for auto encryption: buildinfo
Destroying old test database for alias 'default' ('test_djangotests')...
Got an error recreating the test database: 'NoneType' object has no attribute 'execute'

[aclark4life]

Going to start on another draft with a _nodb_cursor implementation.