@Coleman Milligan​ 

It's really hard to create something like this without basic knowledge about how CICD should work or even Terraform.

You can start here, to understand some basics.

https://servian.dev/how-to-hardening-azure-databricks-using-terraform-feb23c231080

Then based on a modules you can parametrize your Terraform modules to create a separate environment for each developer/PR/Dev Branch.