* added operation tag test

* ref: #6470 
* fixes: #6540
* fixes: #4943 

* add example override option to json
* add example override option to xml
* added basic oneOf and anyOf support
* fix anyof|oneof
* only lift xml to items


Co-authored-by: Tim Lai <timothy.lai@gmail.com>

* Handle relative urls for oauth authorization

The full URL is computed based on the current selected server
if a relative URL is used as authorizationUrl
or tokenUrl


Co-authored-by: Eliot Berriot <contact@eliotberriot.com>

Co-authored-by: Theo Markovic <theodore.markovic@svenskaspel.se>

* When the media-type is changed, there is a new `onChangeMediaType` method to handle actions.
* If target schema properties key/value pairs does NOT equals current schema properties, clear the requestBodyValue, try-it-out request/response and validation params.
* If target schema properties key/value pairs DOES equals current schema properties, do not change or re-render schema properties
* oas3Selector `validateShallowRequired` now also validates required keys against target media-type

Fixes #6201, #6250, #6476

Co-authored-by: @danxmoran

* reverts #6412 which stringified string value if content-type: text/plain 
* enable stringify string values matching `/json/` and allowList of `shouldStringifyTypes` ("string")

Allows `requestInterceptor` to add options to the curl command.
For example:

```js
requestInterceptor: function (request) {
  if (request.method === 'GET') {
    request.curlOptions = ['-g']
    request.url = request.url
      .replace('%5B', '[')
      .replace('%5D', ']')
      .replace('%2C', ',');
  }
  return request;
}
```

fixes #6120

* Add default configuration `preserveAuthorization`

* Add localStorage to auth plugin

* Add persistAuthorization unit tests

* Refactor persistAuthorization to use wrapped actions

* Upgrade unit tests to be compatible with jest

* Add persistAuthorization documentation


Co-authored-by: Tim Lai <timothy.lai@gmail.com>

* replace all occurrences instead of only first occurrence

* config(jest): updated setup
* config(jest): update testMatch to include jsx files
* config(jest): add transformIgnorePatterns
* config(jest): update ignore files that do not work in jest yet
* config: add test:unit-jest to test script

* fix(jest): lint with eslint-plugin-jest

* refactor(jest): move unit test directory
* refactor(mocha): restore mocha tests that fail in jest

* docs(jest): update helpful scripts with test:unit-jest