Split "MS megane green" (originally red) into green and red variant.
( Tazze - http://forum.simutrans.com/index.php?topic=11954.0 )

git-svn-id: https://simutrans.svn.sourceforge.net/svnroot/simutrans/pak128@1217 e96eaf88-093e-0410-925f-862d53288611