Create standard response functionality

[jolevesq]

Create a function to parse every respond from API/Data source to the standard response. Apply same technique as the parser functionality (schema, lookup, ...)

The goal is to be able to add new sources with a minimum of developers intervention. Use the response schema to build the output.

[David-Henandez-nrcan]

A python library called 'model_manager.py' inside cloud-formation/python includes all the functionality to parse every response from several API data sources into standard response. the main function inside this library is: items_from_service(). it takes several parameters:

• service: The name of the service to put it ahead of the item's data
• model: The model schema with tables to extract from
• schema_items: the section of the out-api schema to process the data layer
• schema_required: The section of the out-api schema to validate the
• presence of 'required' fields in the data layer
• load: The input set of data items

The returning set of features complains with the expected standard response schema.