Setup aligned_volume database on startup

[dlbrittain]

Currently the aligned volume database is not created automatically at startup of the app. This prevents the health check from completing successfully crashing the app.

Current work around: disable health check then create the aligned volume via the api:
/api/v2/aligned_volumes/{aligned_volume_name}

We need to add a pre-start script to check and create the database before the flask app starts up