PostGIS rework

[nanth-uw]

This rework utilizes the postgis tiger geocoder extension built in
functions to load the data.

There is also the issue of the database user (which I removed and is currently
the default postgres instead of the previous clad_svc user).

• Remove these old folders
• Remove repo files
• Python-based alpine ruby image. No R required
• Add csv thing
• Add build dependencies and delete repo build dir
• Add data folder ignores, but retain top level data folder
• Also copy flag_flag to auto-start
• Enable trivy scan
• Use linux platform in run
• Remove old scripts, move to scripts folder for ad-hoc usage
• Move python code in scripts folder, extract sql queries into files
• Add automated data download using postgis tiger functions

[nanth-uw]

For more information, these postgis tiger sql scripts come from here: https://postgis.net/docs/manual-3.6/en/Extras.html#Tiger_Geocoder

[nanth-uw]

I'm pretty sure (but could be wrong) this simply need the user permissions fixed? And then the PG_USER in the python script adjusted.

[nanth-uw]

This should now be ready for review and merging into main