PLAT-1228 Support bok-choy in Docker Devstack

cms/envs/bok_choy.py

cms/envs/bok_choy_docker.auth.json

cms/envs/bok_choy_docker.env.json

cms/envs/bok_choy_docker.py

common/test/acceptance/fixtures/__init__.py

common/test/acceptance/pages/common/__init__.py

common/test/acceptance/pages/common/auto_auth.py

common/test/acceptance/pages/lms/__init__.py

common/test/acceptance/pages/studio/__init__.py

lms/envs/bok_choy.py

lms/envs/bok_choy_docker.auth.json

lms/envs/bok_choy_docker.env.json

lms/envs/bok_choy_docker.py

pavelib/utils/envs.py

pavelib/utils/test/bokchoy_utils.py

pavelib/utils/test/suites/bokchoy_suite.py

pavelib/utils/test/utils.py

requirements/edx/base.txt

scripts/reset-test-db.sh