(svn r1290) Added type to typedef struct Engine and filled in the same data as in type in vehicle
it was kind of lame that you should use AircraftVehInfo(), ShipVehInfo() etc. if you wanted to know what type the engine is

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static const byte _dir_to_straight_trackdir[4] = {

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	0, 1, 8, 9,

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};

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static const byte _reverse_dir[4] = {

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//	3, 0, 1, 2

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	2, 3, 0, 1

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};