[path_provider] Path provider windows updates (flutter#3049)

- Adds missing iOS podspec to path_provider_windows, which was necessary to publish it (since path_provider doesn't require 1.20+)
- Requires path_provider_windows 0.0.2, not 0.0.1, in path_provider endorsement.

Add missing podspec to path_provider_windows

[video_player] VideoPlayerPlugin.java uses or overrides a deprecated …

…API (flutter#3019)

[share] MethodCallHandler.java uses unchecked or unsafe operations (f…

…lutter#3004)

[image_picker] Updated docs getImage() about preference rear front no…

…t working on Android (flutter#3037)

[image_picker] Updated docs getImage() about preference rear front no…

…t working on Android (flutter#3037)

[camera] CameraPlugin.java uses or overrides a deprecated API (flutte…

…r#3018)

remove android folders (flutter#3030)

remove android folders (flutter#3030)

remove android folders (flutter#3030)