* Add dismiss action to modal barrier

* fix test

* fix another test

* Revert "Enable dart_plugin_registry_test (#76645)"

This reverts commit 109e0bb9.

* Revert "Apply changes caused by https://github.com/flutter/flutter/pull/76662 (#77093)"

This reverts commit cdca6485.

* Revert "Disable clang format in the plugin registrants (#76662)"

This reverts commit dadbd47d.

* Revert "Disable warnings for the dart plugin registrant (#76561)"

This reverts commit 098ece52.

* Revert "Remove dart_plugin_registry_test timeouts (#76838)"

This reverts commit 1610a274.

* Revert "Implement dartPluginClass support for plugins (#74469)"

This reverts commit b7d48062.

Kick.

* Update cluster.

* Update namespace.

* Replace zone with region.

* Set region as zone.

* Use default namespace.

* Update namespace.

This reverts commit 2c2c8a75.

* Create state restoration templates, 

* Update existing state restoration samples to use the new templates

* Add to README, decided to require stateful widgets to include RestorationMixin

This reverts commit 8c44abc0.

Adds the rest of the scaffolding for building a UWP application. The actual build functionality needs to be implemented, but could use buildWindows as an example (if it is going through cmake)

#14967