[flutter_template_images] Fix maskable icons (flutter#363)

[flutter_lints]: analyzer_options.yaml -> analysis_options.yaml (flut…

…ter#368)

[pointer_interceptor] Shadow dom tweaks (flutter#364)

Update README.md for flutter_lints (flutter#358)

Add additional Windows template icons (flutter#357)

Updates to version 3.0.1

Add example to flutter_lints package (flutter#354)

Merge pull request flutter#348 from stuartmorgan/import-flutter-image

[flutter_image] Import from flutter/flutter_image

[pigeon] cleaned up gitignore (flutter#352)

Prepare flutter_lints for 1.0 release (flutter#349)

Add flutter_lints package (flutter#343)