U2024.12.23-1607: Automatic merge of T1.5.1-1435-ge5b84141d and 13 pull requests

- Pull request #892 at 1f5ba4c81: Signal Function OPP_SIG_ID_TRAINPATH
- Pull request #961 at 8a9c8f9b4: Improvements for Power Supplies
- Pull request #981 at 1c53db2fa: Multiple type trainset lightglows
- Pull request #996 at 2fcbcde10: Replace dynamic brakes by engine brakes at low speeds
- Pull request #1009 at 80172b809: Fix: TrainCarViewer overlaps when display size changed
- Pull request #1010 at 6a1060f0e: Fix: TrainDrivingInfo window width not stable.
- Pull request #1012 at fbb87b0e1: doc:adds 3 news items to Manual
- Pull request #1015 at 266e9cacb: Enhancements for EP brakes
- Pull request #900 at c27f32d9c: DMI updates
- Pull request #876 at f92de7665: docs: add source for documents previously on website to source Documentation folder
- Pull request #896 at f1681df56: First implementation of https://blueprints.launchpad.net/or/+spec/specific-sounds-for-ai-trains
- Pull request #1001 at fcac6f6af: Telemetry collection and menu options #or-telemetry-system
- Pull request #1003 at c73459223: Clean up logging during loading #or-std-log