Add dynamo put function and scaffold application utility

[gmrabian]

Summary

• Add put function to dynamo lib so we can save records
• Scaffold application utility for saving applications
• Add tests

Fixes #111

Type of change

• [x] New feature (non-breaking change which adds functionality)

How To Test

• Wait until application submit is ready
• Hook it up and make sure it saves to the db!

Checklist:

• [x] My code follows the style guidelines of this project and has no linting errors
• [x] I have performed a self-review of my code
• [x] I have commented my code, particularly in hard-to-understand areas
• [ ] I have made corresponding changes to the documentation, including any applicable ADRs
• [x] My changes generate no new warnings
• [x] I have added tests that fail without these changes
• [x] New and existing tests (unit, integration, accessibility) pass locally
• [ ] Documentation updated
• [ ] If there are security concerns they are addressed or ticketed after being discussed

[codeclimate[bot]]

Code Climate has analyzed commit 4f56e15b and detected 0 issues on this pull request.

The test coverage on the diff in this pull request is 80.0% (80% is the threshold).

This pull request will bring the total coverage in the repository to 96.5% (-0.5% change).

View more on Code Climate.