Automatic merge of T1.6-rc7-43-ge3d1d75f9 and 14 pull requests

- Pull request #1086 at e10390b: Add Settings Exporter tool (copy settings to INI, etc)
- Pull request #1091 at 2e06f85: Automatic speed control
- Pull request #1104 at 87cdd9f: Handle simple adhesion within the axle module
- Pull request #1115 at 270f22f: Do not activate ETS switch if no suitable cars are attached
- Pull request #1120 at ba3c47f: Automatically Calculate Friction Values if Missing
- Pull request #1121 at 91d2d26: Manually Override Articulation
- Pull request #1130 at 8ae6bb7: Fix F9 points to an incorrect car ID.
- Pull request #1143 at 71e57d2: Status in Work Orders popup set too fast
- Pull request #1151 at 5e59187: fix: Do not allow non-ACE/DDS textures in content
- Pull request #1152 at 66dfd09: fix: Clean up multiple issues with data logger
- Pull request #1082 at 5845a1a: Allow variable water level in glass gauge
- Pull request #1081 at 689494b: Brake cuts power unification
- Pull request #1124 at fab5457: Built-in PBL2 brake controller
- Pull request #1128 at 278d8ff: Particle Emitter Overhaul

Author: openrails-bot