gList -- Group together VectorGraphics objects

i1 : a=gList(Line{(-100, 15, 78), (-9, 100, 4)},
         Line{(-96, -49, -100), (46, -100, 52)},
         Line{(-100, -42, -51), (59, 100, 76)},
         Line{(-100, 66, 54), (83, -100, -27)})

o1 = a

o1 : GraphicsList

i2 : b=gList(Line{(-30, 100, 20), (9, -100, 8)},
         Line{(-78, -73, -100), (-64, 84, 100)},
         "stroke"=>"red")

o2 = b

o2 : GraphicsList

i3 : gList(a,b,SizeX=>20)

o3 = GraphicsList{cache => CacheTable{}}
                  Contents => {a, b}
                  Is3d => true
                  SizeX => 20

o3 : GraphicsList