Miscellaneous Improvents to clean up the code/repository

.dockerignore

.flake8

.gitignore

.gitlab-ci.yml

.pre-commit-config.yaml

DEVELOPING.md

Dockerfile

README.md

alembic.ini

alembic/README

alembic/env.py

alembic/script.py.mako

...bic/versions/5521b5759004_create_user_and_bucket_table.py

...s/83a3a47a6351_add_username_and_display_name_and_drop_.py

alembic/versions/cafa1e01b782_create_permission_table.py

app/__init__.py

app/api/__init__.py

app/api/api.py

app/api/dependencies.py

app/api/endpoints/__init__.py