[REQ] Organise generated HTML doc by the yaml order, not alphabetically

Is your feature request related to a problem? Please describe.

I use openapi-generator to generate static html documentation of API.
The list of endpoints is organized using the tags in a ascending alphabetical order.
I would like to keep the order of the endpoints set in the yaml or json file.

I did test with the pestore.yaml file by moving the store endpoints before the user endpoints but nothing changes in the generated html.

Describe the solution you'd like

To leverage the mustache templates, I would like to have a parameter that would let me organize the {{#apis}} and the {{#operations}} list in the mustache template.

  <h1>Methods</h1>
  {{#apiInfo}}{{#apis}}{{#operations}}
    <h2>{{baseName}}</h2>
    {{#operation}}
      <h3>{{nickname}} - {{summary}}</h3>

Describe alternatives you've considered

An alternative would be to have a config option that would be used by the java code generating these lists.

Start with the mustache template sections containing {{#apis}} and {{#operations}}, then reproduce the ordering behavior using pestore.yaml with store endpoints before user endpoints. Trace where the Java generator builds these lists and determine how a configuration option could preserve YAML or JSON order; done means generated HTML follows the input order.