[chore]: Standardize response output from all SDK methods

[zFernand0]

Describe the bug

Throughout the codebase, we have a few methods that return the entire object from the REST request, and users have to get the result["response"] in order to get to the JSON properties of the response object.

Expected and actual results

We should return the response object (which contains the JSON properties) instead of the REST response object

Describe your environment

N/A

Additional context

Here is a good way to identify the methods that are not complying with this rule: (thanks @t1m0thyj)

• Check for integration tests that extract the ["response"] property from the result of the REST call.

  • zowe-client-python-sdk/tests/integration/test_zos_files.py

    Line 69 in 0afad40

    self.assertIsInstance(command_output["response"], str)

[github-actions]

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