Create Collection template - set of Requests

[jmromanos]

We should create a Collection template, just a simple collection of Requests to be executed in order. We should create this in my opinion for the following reasons:

• Automatically run all users requests without having to call run each time.
• Possible potentional to do parallel executions in the future
• Method to import a Postman collection

[filfreire]

@jmromanos the last point

• Method to import a Postman collection

we should keep for a separate ticket and decide how best we're going to implement it.

[jmromanos]

We can still discuss all Postman related topics in #44

[filfreire]

@jmromanos closing this one since PR #47 was merged