Amtrak NEC stuff

Repaints of the AEM-7 into the okay looking Phase IV and V. Includes custom horns and bells. The Phase V unit is labeled as an AC so I can have an excuse for putting an ebell on it, despite the lack of the extra box thing on the roof. Both liveries have a helper variant for if you want to double header without having double the horn and bell. Since the vanilla Amfleet looks atrocious, this mod includes new Amfleet I coaches in Phases III through IVb/VI. The original mesh is from Alex at Transport Games , while the textures have been completely overhauled. Also includes cafe cars because why not. Custom sounds as well. Update 8/5/18: Resolved texture conflict with Lord of the Flies' Phase I Amfleet. Please comment if there are any problems.