Changing DB entry structure

[BHouwens]

Description

Makes sweeping changes to the entries saved to DB and storage in general. Changes outlined below

Changelog

• Changes entries per address to a HashMap instead of a Vec, where the map keys are IDs for each value of the address
• Enable retrieval of specific address entries via unique ID (eg. /get_data/{id_value})
• Fixes bug for returning serde_json::Value

Type of Change

Please mark the appropriate option by putting an "x" inside the brackets:

• Bug fix
• New feature
• Enhancement or optimization
• Documentation update
• Other (please specify)

Checklist

Put an "x" in the boxes that apply. If you're unsure about any of these, don't hesitate to ask. We're here to help!

• I have tested the changes locally and they work as expected.
• I have added necessary documentation or updated existing documentation.
• My code follows the project's coding standards and style guidelines.
• I have added/updated relevant tests to ensure the changes are properly covered.
• I have checked for and resolved any merge conflicts.
• My commits have clear and descriptive messages.