Parameter.content
* improve(getParameterSchema): ParameterSchemaDescriptor pattern * chore: update usage of `getParameterSchema` * consider `Parameter.content` media type when validating JSON values
* move Mocha-run tests to `test/mocha` * fix relative paths * fix JSX test paths * update stagnated JSX tests * `test/setup.js` -> `test/mocha/setup.js` * use regex+globstar for test matching * remove `console.log`