Add trustroot testdata generator and embedded data

[codysoyland]

Summary

This PR adds a small program to generate testdata for the trustroot reconciler tests, and uses go:embed to include the test data so that it is easier to read and maintain.

Fixes #1324

Release Note

Documentation

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 54.25%. Comparing base (395638e) to head (f896651).
Report is 61 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1325      +/-   ##
==========================================
- Coverage   54.33%   54.25%   -0.08%     
==========================================
  Files          44       44              
  Lines        3839     3839              
==========================================
- Hits         2086     2083       -3     
- Misses       1539     1541       +2     
- Partials      214      215       +1     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[hectorj2f]

Thanks @codysoyland. Everything looks good here. Could you add a Makefile target that regenerates the test data?

[hectorj2f]

LGTM, thanks @codysoyland