feat(Resource Controller): add "onetime_credentials" property in ResourceInstance and ResourceKey schemas

[swadhin1515]

…nce and ResourceKey schema

PR summary

PR Checklist

Please make sure that your PR fulfills the following requirements:

• The commit message follows the Angular Commit Message Guidelines.
• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)

Current vs new behavior

Does this PR introduce a breaking change?

• Yes
• No

Other information

[CLAassistant]

Thank you for your submission! We really appreciate it. Like many open source projects, we ask that you sign our Contributor License Agreement before we can accept your contribution.
_{You have signed the CLA already but the status is still pending? Let us recheck it.}

[pyrooka]

It seems something has been messed up in your git history, because there is a change in the CHANGELOG.md that shouldn't be here and the change in the service (resource_controller_v2.py) is unusually big. Please make sure that your git history is clean and only include the necessary changes.

If everything okay, please attach the result of the integration and examples test run. You can find more details about how to run them in THIS documentation, but you can also check previous PRs to see the "format" there.

[swadhin1515]

output_examples.txt
output_integration.txt
output_make_all.txt

[pyrooka]

@swadhin1515 Can we close this PR in favor of #263?

[swadhin1515]

Yes sure , we can close this PR .