[image_picker] fixes for iOS which doesn't present camera/albums with…

… more complex navigation (flutter#2755)

[image_picker] Add web support to the example app. (flutter#2816)

[image_picker_for_web] Remove android directory. (flutter#2817)

[image_picker_for_web] Introduce image_picker_for_web package (flutte…

…r#2802)

[path_provider] linux endorsement (flutter#2789)

Endorses path_provider_linux, manually registering its implementation as a workaround for flutter/flutter#52267

[path_provider] linux endorsement (flutter#2789)

Endorses path_provider_linux, manually registering its implementation as a workaround for flutter/flutter#52267

[path_provider] linux endorsement (flutter#2789)

Endorses path_provider_linux, manually registering its implementation as a workaround for flutter/flutter#52267

[path_provider] linux endorsement (flutter#2789)

Endorses path_provider_linux, manually registering its implementation as a workaround for flutter/flutter#52267

[image_picker] Port plugin to use the new Platform Interface. (flutte…

…r#2797)

This change Deprecates the old plugin API, but keeps it available.

Check the README.md for migration advice to the newest API.

[image_picker] Pin version of platform_interface. (flutter#2799)