feat: Create test and augment VoiceResponse with config param.

[mariomui]

Closes 691

#691
In this issue, a community member ask for a configuration object to be passed into VoiceResponse so they can use a simpler:

const response = new VoiceResponse({ connectionOverride: 'rc=2&ct=1000' });
response.redirect({
    method: 'POST'
}, 'https://example.com/foo?query=123');

instead of the more verbose:

const response = new VoiceResponse();
response.redirect({
    method: 'POST'
}, 'https://example.com/foo?query=123#rc=2&ct=1000');

in order to use overrides specified in:
https://www.twilio.com/docs/usage/webhooks/webhooks-connection-overrides

Checklist

• I acknowledge that all my contributions will be made under the project's license
• I have made a material change to the repo (functionality, testing, spelling, grammar)
• I have read the Contribution Guidelines and my PR follows them
• I have titled the PR appropriately
• I have updated my branch with the main branch
• I have added tests that prove my fix is effective or that my feature works
• I have added the necessary documentation about the functionality in the appropriate .md file
• I have added inline documentation to the code I modified

If you have questions, please file a support ticket, or create a GitHub Issue in this repository.

[claudiachua]

Hi @mariomui , Thanks for your PR. However, the changes are to generated code so we'll have to make changes in the generator. We have this on our internal backlog (DI-2544).