Codegen API Ordering for HTML Clients

Description

For HTML clients the APIs grouped by tags, are ordered alphabetically by tag. I have defined global tags in my preferred order. The Swagger UI seems to display as per my defined order, but Codegen for HTML Client does not. It would be good to have support for API ordering as per global tag definitions OR to follow the order of API in the declarations file.

Swagger-codegen version

3.0.20

Swagger declaration file content or url

openapi: 3.0.1
info:
  title: Test Service
  description: Test Service 
  termsOfService: ''
  version: 0.0.1
tags:
  - name: V
    description: All APIs belonging to V
  - name: S
    description: All APIs belonging to S
  
paths:
  /vendors:
    get:
      summary: Returns a list of all the Vendors.
      operationId: getListOfVendors
      tags:
        - V
      responses:
        '200':
          description: Success

  /samples:
    get:
      summary: Returns a list of all Samples.
      description: ''
      operationId: getSamples
      tags:
        - S
      responses:
        '200':
          description: Success

Command line used for generation

Generate HTML Client code using Codegen. I have tried generating using the Swagger Editor.

Steps to reproduce

Generate HTML Client code using Codegen. I have tried generating using the Swagger Editor.

Related issues/PRs

Suggest a fix/enhancement

Use the supplied OpenAPI YAML as a reproduction case and run HTML Client generation through Codegen or Swagger Editor. Trace the HTML client grouping and ordering entry point, then determine whether global tag order or declaration order is authoritative. Done means generated API groups follow the chosen order and the behavior is covered by a regression test.