NAME
    NewLayerInfo -- Allocate and Initialize full layer_info structure.
SYNOPSIS
    result = NewLayerInfo()
    d0
    struct layer_info *newlayerinfo( void );
FUNCTION
    Allocate memory required for full layer_info structure.
    Initialize layer_info structure in preparation to use
    other layer operations on this list of layers.
    Make the layer_info unlocked (open).
INPUTS
    None
RESULT
    result- pointer to layer_info structure if successful
            NULL if not enough memory
BUGS
SEE ALSO
    graphics/layers.h