Modify solution to be able to support multiple environments in same repo

[gwright99]

This solution was originally designed with the idea that customers with multiple environments would run a dedicated installer repo for each environment (i.e. a repo for DEV, and another for PROD).

This approach worked for some customers, but did not align with other implementations where the client team wanted to manage all of their deployments out of a single repo.

We should consider retrofitting the project structure to allow 2+ deployments to be run out of a single repo instance.

[gwright99]

Aggregating ideas for how to do so:

• https://github.com/adriannavarrobetrian/satoshi-terraform
• https://github.com/TusharParasrampuria/three-tier-architecture/tree/main