2090 [camera] Update and migrate iOS example project (cla: yes, submit queue)

2091 [connectivity] Update and migrate iOS example project (cla: yes)

2092 [device_info] Update and migrate iOS example project (cla: yes)

2093 [google_maps_flutter] Update and migrate iOS example project (cla: yes)

2094 [google_sign_in]  Update and migrate iOS example project (cla: yes)

2095 [image_picker] Update and migrate iOS example project (cla: yes)

2096 [in_app_purchase] Update and migrate iOS example project (cla: yes, submit queue)

2097 [local_auth] Update and migrate iOS example project (cla: yes)

2098 [package_info] Update and migrate iOS example project (cla: yes)