36103 Re-land “Part 1: Skia Gold Testing” (a: tests, cla: yes, framework, waiting for tree to go green)

36105 [flutter_tool] Catch a yaml parse failure during project creation (cla: yes, team, tool)

36106 Updated ColorScheme.dark() colors to match the Material Dark theme specification (cla: yes, f: material design, framework, severe: API break)

36108 Move tools tests into a general.shard directory in preparation to changing how we shard tools tests (cla: yes, tool)

36109 Catch exceptions thrown by runChecked* when possible (cla: yes, tool, waiting for tree to go green)

36122 Make sure add-to-app build bundle from outer xcodebuild/gradlew sends analytics (cla: yes, team, tool)