Add ADRs

[wesley-dean-gsa]

Changes proposed in this pull request

This adds several new ADRs to document decisions that have been made recently.

security considerations

None. This is just documentation.

[github-actions]

Preview This Branch

You may view the preview version of the site with the following URL:

https://federalist-a2423046-fe43-4e75-a2ef-2651e5e123ca.sites.pages.cloud.gov/preview/gsa-tts/tts.gsa.gov/671-draft-adrs/

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[github-actions]

Coverage report

St.❔	Category	Percentage	Covered / Total
🟡	Statements	75.16%	230/306
🟡	Branches	75.8%	166/219
🟢	Functions	83.33%	25/30
🟡	Lines	75.16%	230/306

Test suite run success

81 tests passing in 21 suites.

Report generated by 🧪jest coverage report action from 7cb93cf

[github-actions]

🦙 MegaLinter status: ✅ SUCCESS

Descriptor	Linter	Files	Fixed	Errors	Elapsed time
✅ JSON	jsonlint	1		0	0.12s
✅ JSON	npm-package-json-lint	yes		no	0.3s
✅ JSON	prettier	1	0	0	0.42s
✅ JSON	v8r	1		0	1.81s
✅ REPOSITORY	checkov	yes		no	14.03s
✅ REPOSITORY	gitleaks	yes		no	0.2s
✅ REPOSITORY	git_diff	yes		no	0.14s
✅ REPOSITORY	grype	yes		no	9.47s
✅ REPOSITORY	secretlint	yes		no	2.15s
✅ REPOSITORY	trivy	yes		no	4.47s
✅ REPOSITORY	trufflehog	yes		no	2.0s

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