[Enhancement proposal]: Please add Linux and MacOS support

### Please check the following before submitting a new issue.

- [x] I have searched the [existing issues](https://github.com/baseflow/flutter-permission-handler/issues).
- [x] I have carefully [read the documentation](https://github.com/baseflow/flutter-permission-handler/blob/main/permission_handler/README.md) and verified I have added the required platform specific configuration.

### Please select affected platform(s)

- [ ] Android
- [ ] iOS
- [ ] Windows

### Proposal

Please consider making the plugin also compatible to Linux and MacOS

### Pitch

Usage for Linux and MacOS users