[MTR3/4]Srt European Continental Trains

MTR4 (Beta 15~) Only vetsion. not compatible with MTR3

Json changed to mtr4 format

By default, only base version is downloaded, so users have to choose pack version from the pack version page and download additional files from the bottom.

Added Contents

• Base pack: Sounds for Eurofima carriages
• Switzerland: SBB, BLS Reversed Control car
• Another packs: Carriage sounds are added