Windows implementation of the path_provider plugin
- Add getPath to the stub, so that the analyzer won't complain about fakes that override it.
- export 'folders.dart' rather than importing it, since it's intended to be public.
- Move the actual implementation behind a conditional import, exporting a stub for platforms that don't support FFI. Fixes web builds in projects with transitive dependencies on path_provider.
- Add missing
pluginClass: nonefor compatibilty with stable channel.
- README update for endorsement.
- Changed getApplicationSupportPath location.
- Removed getLibraryPath.
- The initial implementation of path_provider for Windows
- Implements getTemporaryPath, getApplicationSupportPath, getLibraryPath, getApplicationDocumentsPath and getDownloadsPath.