4121 Add buildViewWithTextDirection to platform interface (cla: yes, waiting for tree to go green, p: google_maps_flutter)

4123 [image_picker] Platform interface update cache (cla: yes, waiting for tree to go green, p: image_picker)

4124 [image_picker]Android update cache (cla: yes, waiting for tree to go green, p: image_picker, platform-android)

4129 Ignore unnecessary_import in legacy analysis options (cla: yes, waiting for tree to go green)

4140 [camera] Run iOS methods on UI thread by default (cla: yes, waiting for tree to go green, p: camera, platform-ios)

4156 [url_launcher] Add native unit tests for Windows (cla: yes, p: url_launcher, platform-windows)