[Material] Add ability to set shadow color and selected shadow color for chips and for chip themes (#28163)

* Add ability to set shadow color for chips and for chip themes

* Add selected shadow color as a property as well

* Update phrasing of documentation

* Address PR feedback

flutter/engine@33bb91c Allow embedders to specify a vsync waiter. (flutter/engine#7914)
flutter/engine@4cb9a14 Allow embedders to add events to the timeline. (flutter/engine#7917)

flutter/engine@cb0f7ece1 Roll src/third_party/skia 63c4d3596915..e9912ca049a0 (8 commits) (flutter/engine#7918)

flutter/engine@043d92c48 Embedder API for setting the persistent cache path (flutter/engine#7915)

* deploy to .dev firebase projects.

* Updated secrets for .dev web sites.

* Fixed missing docs.*.io references.

flutter/engine@f1f19bba8 Revert "Revert "Revert "Reland PerformanceOverlayLayer golden test (flutter/engine#7863)" (flutter/engine#7895)" (flutter/engine#7911)" (flutter/engine#7916)
flutter/engine@5db4b3772 Revert dart rolls (flutter/engine#7913)
flutter/engine@0053c1d50 Roll src/third_party/dart 75ee523f91..4cff5a4fd6 (6 commits)
flutter/engine@8620579cf Roll src/third_party/skia 9a049e6ce39d..63c4d3596915 (8 commits) (flutter/engine#7909)
flutter/engine@aa2b287cb Reland flutter/engine#7777 with proper LICENSE (flutter/engine#7888)
flutter/engine@a5773d121 Do not add ghost runs for trailing whitespace if the text is ellipsized (flutter/engine#7906)
flutter/engine@93eeb48ba Revert "Revert "Remove unnecessary entry-point closurization. (flutter/engine#7827)" (flutter/engine#7876)" (flutter/engine#7904)
flutter/engine@bbaeba3f3 Roll src/third_party/skia 05ff93c43ea5..9a049e6ce39d (11 commits) (flutter/engine#7903)
flutter/engine@1cf6b8b64 Roll src/third_party/dart 5ddd157809..75ee523f91 (19 commits)
flutter/engine@be32040ef Roll src/third_party/skia 348227b89430..05ff93c43ea5 (2 commits) (flutter/engine#7901)
flutter/engine@293b3de98 Roll src/third_party/skia 20ebd0cb3882..348227b89430 (4 commits) (flutter/engine#7900)
flutter/engine@6e6020d29 Eliminate .member = foo struct initialization (flutter/engine#7899)
flutter/engine@6d8bd99af Revert "Reland PerformanceOverlayLayer golden test (flutter/engine#7863)" (flutter/engine#7895)
flutter/engine@39f7066b6 Test profile and release build and unit tests (flutter/engine#7880)
flutter/engine@abe9826a9 Add accessibility semantics support to embedder (flutter/engine#7891)
flutter/engine@ce7016e1f Roll src/third_party/skia e471c05f92e8..20ebd0cb3882 (4 commits) (flutter/engine#7894)
flutter/engine@684c9394c Respect the custom GL proc table when creating the resource context on the IO thread. (flutter/engine#7893)
flutter/engine@e11d0e96f Android embedding refactor pr5 add flutterengine impl (flutter/engine#7878)
flutter/engine@2f4a38dbd Android embedding refactor pr3 add remaining systemchannels (flutter/engine#7892)
flutter/engine@8427d73c8 Reland PerformanceOverlayLayer golden test (flutter/engine#7863)
flutter/engine@61fc1786f Roll src/third_party/dart c92d5ca288..5ddd157809 (153 commits)
flutter/engine@b0671145a Roll src/third_party/skia 7738736f9622..e471c05f92e8 (23 commits) (flutter/engine#7889)
flutter/engine@6d7eb5218 Revert "Android embedding refactor pr3 add remaining systemchannels (flutter/engine#7874)" (flutter/engine#7886)
flutter/engine@dad6ec01c Correct onAccessibilityFeaturesChanged docs (flutter/engine#7883)

This reverts commit 6f5e88a5.

* Allow for gradle downloading missing SDK assets if SDK licenses are present.

* Fix license path for missing sdkmanager

* Cirrus re-run...

* Fix condition check

* rename props, add docs, rename method

* fix tests after param changes

* Fix weird path for flutter run and add tests

* remove print, fix tests

Fix the length of the valueHelp on the --sample option for the create command, and turn on wrapping. (#28264)

The wrapping for some commands was never actually turned on, so this turns it on.

Also, it shortens the `valueHelp` for the `--sample` option to be just "id" instead of "the sample ID of the desired sample from the API documentation website (http://docs.flutter.io)", which was causing the line to get far too long.

Fixes #23074

* reduce iterations to avoid test timing out

This reverts commit 1c021506.

The pre-commit tests never actually ran, so it looked green when it wasn't. This breaks 16 tests that depend on the argument existing, even though it isn't actually used.

This command line argument has already been removed in the main
Dart repository, so building flutter with the latest dart fails.

* Fix for nan pressure values and values outside min and max pressure ranges

* media query check

Update README.md to remove 404 link on Posse image

* Added sample to AnimatedWidget

* Updated AnimatedWidget example to use listenable from parent

* Made progress private and changed widget name

Fix issue where SliverPersistentHeader that is both floating and pinned would scroll down when scrolling past the beginning of the ScrollView (#27433)

* remove json_schema dep

* remove unnecessary pin

* removed unused dep

* remove unused impport

* Fix incorrect condition

* Add outer try block for obtainKey errors. Add docs.

* change to // from ///, and do specific error handling

* Add return statement after error

* Add test

flutter/engine@6d7eb5218 Revert "Android embedding refactor pr3 add remaining systemchannels (flutter/engine#7874)" (flutter/engine#7886)
flutter/engine@dad6ec01c Correct onAccessibilityFeaturesChanged docs (flutter/engine#7883)
flutter/engine@fc1a68ea1 Roll src/third_party/skia e0a6a048bc4a..7738736f9622 (4 commits) (flutter/engine#7884)
flutter/engine@a150cc125 Fix minor typos in accessibility action docs (flutter/engine#7882)
flutter/engine@bf1654450 Roll src/third_party/skia 249a25730521..e0a6a048bc4a (2 commits) (flutter/engine#7881)
flutter/engine@d60ef0c36 Roll src/third_party/skia ce62dec02293..249a25730521 (15 commits) (flutter/engine#7879)
flutter/engine@1263d28ab Fix caret being at left edge when newline pressed on centered text (flutter/engine#7875)