Allow providing all debugging options to the desktop engine via the FLUTTER_ENGINE_SWITCH_ environment variables.
Fixes#66532Fixes#46005Fixes#58882
The underling engine changes have already landed for Windows, macOS, but linux is still in progress
Refactors the desktop devices and workflow to remove unnecessary usage of global variables. This should make it easier to test and continue enhancing the desktop functionality of the tooling
#47161
* Update project.pbxproj files to say Flutter rather than Chromium
Also, the templates now have an empty organization so that we don't cause people to give their apps a Flutter copyright.
* Update the copyright notice checker to require a standard notice on all files
* Update copyrights on Dart files. (This was a mechanical commit.)
* Fix weird license headers on Dart files that deviate from our conventions; relicense Shrine.
Some were already marked "The Flutter Authors", not clear why. Their
dates have been normalized. Some were missing the blank line after the
license. Some were randomly different in trivial ways for no apparent
reason (e.g. missing the trailing period).
* Clean up the copyrights in non-Dart files. (Manual edits.)
Also, make sure templates don't have copyrights.
* Fix some more ORGANIZATIONNAMEs