Feat/import translation for deprecated pm import

[Pragadesh-45]

Description

This PR implements the translation for importing Postman collections from the deprecated method of writing test scripts. Specifically, it translates the test[] check illustrated below:

test['test description'] = boolean_condition

test("test description", function() {
  expect(boolean_condition).to.be.true;

*working on other deprecated and missing translations

Contribution Checklist:

• [x] The pull request only addresses one issue or adds one feature.
• [x] The pull request does not introduce any breaking changes
• [x] I have read the contribution guidelines.