Add custom gcode back, which can be inserted in gcode viewer layer slider. Signed-off-by: salt.wei <salt.wei@bambulab.com> Change-Id: I270cc438bedf11b30f07f8f9bad6ae5436d5a2dd
Change-Id: I435830615747aa850ed82621349f5fedfc29d860
using version 1.0.10