20455 Send locale information in the Windows embedding (affects: desktop, cla: yes, platform-windows)

20461 Send locale information in the macOS embedding (affects: desktop, cla: yes, platform-macos)

20613 [windows] Allow delegation of top-level WindowProc (affects: desktop, cla: yes, platform-windows)

20662 [windows] Mostly eliminate the state structs (affects: desktop, cla: yes, platform-windows)

20668 [windows] Add horizontal scroll support (affects: desktop, cla: yes, platform-windows)

20760 Default C++ wrapper templates to EncodableValue (affects: desktop, cla: yes, platform-windows)

affects: tests - 8 pull request(s)