Update the license headers throughout the repository to reference Google LLC rather than Google Inc, for the required license headers. PR Close #37205
PR Close #36613
Moves the `renderer_to_renderer2` migration google3 tslint rule into the new `google3` directory. This is done for consistency as we recently moved all google3 migration rules into a new `google3` folder (see: f69e4e6f77). PR Close #31817
f69e4e6f77