PSM CLI, table persistence

[dogversioning]

This PR makes the following changes:

• Two types of tables are available, persisted outside of study lifecycle - a basic transactions log, and a list of all stats objects in a given study
• Stats specific:
  • stats tables have a timestamp of creation
  • a view will be created that points to the latest table
  • cli flags added for force recreate/removal
  • Cleaned up PSM flags allowing for access to small data sets
• Test data generator added for stats table sampling
• Added data_path as a class var to StudyBuilder/StudyParser to get a write dir to PSM
• StudyParser tests cut over to DuckDB for unit testing

Checklist

• [X] Consider if documentation (like in docs/) needs to be updated
• [X] Consider if tests should be added
• [X] Run pylint if you're making changes beyond adding studies
• [ ] Update template repo if there are changes to study configuration <- will do this after review in case of any comments

[dogversioning]

@mikix Known issues I will address that are not blocking review:

• I need to update unit tests to inspect records of the transaction logs/stats tables
• I have several inline SQL queries I should cut over to templates
• I'll deal with regression at the end