[Impeller] Plumb through the impeller-force-gl flag.

[Impeller] Plumb through the enable-vulkan-validation flag.

Ignore spam from SurfaceSyncer

Remove 1745 decorative breaks

Separate attached and wireless devices

This reverts commit 275ab9c6.

Revert "Reland "Remove references to Observatory (#118577)""

This reverts commit 298d8c76.

* Fix typos

* lowercase animated & opacity

* Undo typo fix

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Co-authored-by: Michael Goderbauer <goderbauer@google.com>

This reverts commit 2df140f4.

Observatory is being deprecated for Dart 3.0 so it should no longer be
referenced in tooling messaging / flags.

See https://github.com/dart-lang/sdk/issues/50233

* Add a new PrebuiltFlutterApplicationPackage interface.

* Review feedback

* Rename bundleDir to uncompressedBundle

This reverts commit 1d9edde0.