Smart Contracts: Http.request/5 and Http.request_many/2

[bchamagne]

Description

Add a new throw_on_error flag that can be specified to handle the HTTP errors in the contracts.
Fixes #1381

Type of change

• New feature (non-breaking change which adds functionality)

How Has This Been Tested?

Unit tests & local test with contract such as:

  @version 1

  actions triggered_by: interval, at: "* * * * *" do
    responses = Http.request_many([
      [url: "https://fakerapi.it/api/v1/users?_quantity=1&_gender=male&_seed=cucumber", method: "GET"],
      [url: "https://fakerapi.it/api/v1/users?_quantity=1&_gender=male&_seed=cucumber", method: "GET"],
      [url: "https://fakerapi.it/api/v1/users?_quantity=1&_gender=female&_seed=tomato", method: "GET"],
      [url: "https://fakerapi.it/api/v1/users?_quantity=1&_gender=female&_seed=tomato", method: "GET"],
# should fail (non https)
      [url: "http://fakerapi.it/api/v1/users?_quantity=1&_gender=female&_seed=tomato", method: "GET"],
# should fail (too many urls)
      [url: "https://fakerapi.it/api/v1/users?_quantity=1&_gender=female&_seed=tomato", method: "GET"],
    ], false)

    log(responses)
  end

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published in downstream modules