2nd Phase - Openapi to Models translation

[app-generator]

Hello @koladev32 For this evolution please use a new branch.

Here is the flow:

• the user saves the openapi file
  • inputs DIR has some samples
• the OA to models translation is done via CLI
• tastypie exposes the API on top of the new models

The OA -> model translation is done already by this tool:

https://github.com/app-generator/devtool-openapi-parser

We can start with the most simple INPUT, a products model available in inputs directory

Ty!