Replace all instances of the year 2022 with 2023 in all copyright headers
* Replace 2020 with 2022 Replace all 2020 headers with 2022 * replace other years with 2022 add missing years
Use correct TD4 checksum for vanilla TD4's. Simplified the code for version detection since checksum numbers do not match up to a version Fix TD4 imports. Oh yeah TD4 doesn't have scenery or entrances Move track related structs to correct files