[MTR3/4] New South Wales EMU Trains

Updated Contents

• H-Set orange livery
• H-Set medium carriage interior door bugfix
• R-Set was moved from DMU Pack due to pack capacity
• Change legacy offset from 1.2 to 0.7 (don't need to jump to take middle carriage)

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

Json changed to mtr4 format