Blue Formatting

[tmsincomb]

Changes

• v0.9.1 blue formatting ran on existing code
• had to modify import comment (ingest.py) and refactor string in sql text (api.py)
• add blue hook
• add pre-commit with blue

Usage

pip install -e .
pre-commit run --all-files

[tgbugs]

This is looking much better for merge back to master, however, I think we need to exclude api.py from blue because it makes it much harder to see and understand the sql generation that is going on since it spreads it out too much to be contained on a single page.