4023 Ignore upcoming unnecessary_imports analysis (cla: yes, waiting for tree to go green)

4024 [flutter_plugin_tools] Migrate xctest command to NNBD (cla: yes, waiting for tree to go green)

4028 Fix typo; s/unnecessary_imports/unnecessary_import (cla: yes, waiting for tree to go green)

4038 [image_picker] Cleaned up README example (cla: yes, waiting for tree to go green, p: image_picker)

4039 [camera] android-rework part 6: Android exposure- and focus point features (cla: yes, waiting for tree to go green, p: camera, platform-android)

4048 [flutter_plugin_tools] Complete migration to NNBD (cla: yes, waiting for tree to go green)