Implement size analyzer to unzip & parse APK and AOT size snapshot to generate analysis json (#62495)

* Implement size analyzer to unzip & parse APK and AOT size snapshot to generate analysis json

This reverts commit 561735ad.

The test device is causing failure of this test, we will need a couple days to physically access the device and fix the issue. So mark it as flaky to unblock the tree.

Bug: https://github.com/flutter/flutter/issues/62633

[flutter_tools] update pubspec .yaml message should not be displayed when creating a new plugin (#62599)

* update pubspec message should not be displayed when creating a new plugin

* formatting

* revikew

* review

* cleanup

There are some occasional difficult to repro flakes on the tool integration tests. Try running only a single isolate to simplify the environment a bit.

* Ignore unmounted parent when _debugVerifyGlobalKeyReservation (#62055)

* Ignore unmounted parent when _debugVerifyGlobalKeyReservation (#62055)

* Ignore unmounted parent when _debugVerifyGlobalKeyReservation (#62055)

* Ignore unmounted parent when _debugVerifyGlobalKeyReservation (#62055)

* Ignore unmounted parent when _debugVerifyGlobalKeyReservation (#62055)

* Ignore unmounted parent when _debugVerifyGlobalKeyReservation (#62055)

flutter/flutter#62143

* Fix even more unresolved doc references in material

* ++

* ++

* Split gen_keycode to make maintenance easier. 

* migrate animation to nullsafety

* nullable tween

* fix generic type issue

* address review comment

Devtools doesn't currently support connections to DDS. Disable DDS
temporarily while a solution is worked on. See https://github.com/flutter/flutter/issues/62507

Fixes https://github.com/flutter/flutter/issues/39526

Needs https://github.com/flutter/engine/pull/20013 to land and roll first.

This removes the (now unused) `invertMeaningOfVerticalAndHorizontal`
flag.

Fixes https://github.com/flutter/flutter/issues/61470