[Playground] List of deployment models

[justinyoo]

AS a user
I WANT see a dropdown list that contains the list of deployment models
SO THAT I can select a deployment model to use

[justinyoo]

1. [OpenAPI] Add endpoint for list of deployment models #169
2. [Backend API] Implement endpoint for list of deployment models #170
3. [Playground] Component - button to display a given input #171
4. [Playground] Component - list of deployment models (UI only) #172
5. [Playground] Component - list of deployment models (UI logic only) #222