Introduces plan_zoom_clips_plus field in Billing API for plan management

Added

Enhancements

• New plan_zoom_clips_plus request field in the following Billing API:
  • POST /v2/accounts/{accountId}/plans
• New plan_zoom_clips_plus response field in the following Billing APIs:
  • GET /v2/accounts/{accountId}/plans/usage
  • POST /v2/accounts/{accountId}/plans
  • GET /v2/accounts/{accountId}/plans