38568 Normalize assert checking of clipBehavior (CQ+1, cla: yes, f: material design, framework, severe: API break)

38573 Clamp scrollOffset to prevent textfield bouncing (a: text input, cla: yes, framework)

38576 flutter_tools/version: git log.showSignature=false (cla: yes, tool)

38583 Added InheritedTheme (cla: yes, f: material design, framework)

38632 Flutter Plugin Tool supports multi-platform plugin config (cla: yes, tool)

38643 PlatformViewLink handles focus (a: platform-views, cla: yes, framework)

38650 Allow independent theming of Persistent and Modal bottom sheets (cla: yes, f: material design, framework)