Ceiling_MoveToValue

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47:Ceiling_MoveToValue (tag, speed, height, neg)

tag: Tag of affected sector 
speed: How quickly the ceiling moves 
height: Absolute height of the move 
neg: Whether or not the destination height is negative 

Moves the ceiling of affected sectors to an absolute height. If the destination height is negative, then neg should be 1, otherwise it should be 0 for a positive height. If tag is 0, then the sector on the line's back side is used.