Add fixture with sample analysis results

[KlaasH]

Overview

This edits the setup script (technically the update script, which does most of the setup) to download and import a fixture containing a few neighborhoods and analysis results. Specifically neighborhoods and results for:

• Grand Rapids, MI
• Mackinac Island, MI
• Pella, IA
• Presque Isle, ME
• Thunder Bay, ON, Canada
• Groningen, Netherlands

These particular ones were chosen mostly-arbitrarily by me, with a goal of keeping them smallish but not all tiny, with some in the US and some not. (And Mackinac Island made the cut because it's the #1 low-stress connectivity champion, owing to the fact that cars are banned from the island.)

I also added one neighborhood, Montpelier, VT, for which I didn't import the analysis results. Because it seems like it might be useful to have a neighborhood with no current analysis ready to go so we can run an analysis and not have to check if what we're seeing afterwards is the result of that or an earlier one.

To load the fixture, run ./scripts/update --load-data. I made it optional because it really only needs to be done on initial setup, and it will waste time to import it again on subsequent updates (I also put the import_crash_data step in the same conditional block, for the same reason).

Resolves #959

Demo

Notes

I assembled the data by copying it from production, i.e.:

• Downloading the boundary files from s3://production-pfb-storage-us-east-1/neighborhood_boundaries/root/
• Finding the job UUIDs of the latest job for each neighborhood via the web interface, then downloading the analysis output files for that job from s3://production-pfb-storage-us-east-1/results/
• Bundling up the files for each job into a .zip file
• Adding the neighborhoods through the Neighborhoods admin page
• Importing the analysis results through the Jobs admin page

Then I exported the fixture and uploaded it to S3:

./scripts/django-manage dumpdata --indent 2 -o sample_analysis_results.json.gz \
    pfb_analysis.AnalysisJob pfb_analysis.Neighborhood pfb_analysis.NeighborhoodWaysResults \
    pfb_analysis.CensusBlocksResults
aws --profile pfb s3 cp sample_analysis_results.json.gz "s3://test-pfb-inputs/"

Testing Instructions

• Delete your existing dev instance with docker compose down -v (this is necessary because you need your organization_id to match what the fixture expects)
• Run ./scripts/update --load-data to rebuild your instance and import the data
• Run ./scripts/server and go to http://localhost:9301/#/. You should see the imported results in the "Leading Cities/Towns" panel on the landing page, and on the list if you click "All places"

Checklist

• Add entry to CHANGELOG.md