feat(templates): add voice-queue template

[jonedavis]

Description

Add template: voice-queue Template Description: A simple call queuing system. Place the inbound caller into a queue with hold music while waiting for the intended recipient to answer.

Checklist

• [x] I ran npm test locally and it passed without errors.
• [x] I acknowledge that all my contributions will be made under the project's license.

Related issues

None