* feat: implement create-regexp-features-plugin
* fix: test input is not effective
* refactor: leverage create-regexp-features-plugin
* test: add more test cases
* test: update test fixture
* chore: add type annotation to features
* test: add regression test for issue 9892
* add regression test for issue 9199
* address review comments from Nicolò
* address review comments from Brian
* small tweaks
* Enable dotAllFlag when flags includes u
* fix: transform name capturing regex once
* refactor: early return when pattern contains only lookbehind
* chore: simplify test regex
* chore: run test on >=8.0.0
When the `runtime` flag is on (by default), this plugin adds a new helper which wraps the native `RegExp` class to provide groups support. People nees to use a polyfill (I implemented it in core-js) for browsers that don't support ES6 regexps.
