SplinesToLineStripArray Op

input format is: [[x1,y1,z1,x2,y2,z2,x3,y3,z3],[x4,y4,z4,x5,y5,z5,x6,y7,z7]]

output would be:

[x1,y1,z1,x2,y2,z2,x2,y2,z2,x3,y3,z3,x4,y4,z4,x5,y5,z5,x5,y5,z5,x6,y6,z6]

when connected to simplespline this will draw 2 lines, each consting of 3 points ( in one draw call)