wjian23

**Is your feature request related to a problem? Please describe.** support compile to wasm and run in web browser **Known issues and tasks** - [x] compile to wasm - [x]...

The core lib should not depend on winit's WindowEvent directly, which mean you can custom yourself's window management library. event need to move out - [ ] WindowEvent - [x]...

pointer capture ability can be used to ensure that an element continues to receive pointer events even if the pointer device's contact moves off the element

## Purpose of this Pull Request *Please briefly describe what this Pull Request is aiming to achieve.* ## Checklist Before Merging Please ensure the following are completed before merging: -...