bug: There is a part of the overhang area in the model that cannot be applied
Change-Id: Ia1045225776ccb0e8730912aae1d4c7509f40c5b
(cherry picked from commit daa3e131564690e9e169313d147fd84537b898ca)
1. fix a crash when loading a 3mf painting with color idx larger than 15
2. fix the facets not display issue if painted with color 15
Signed-off-by: yifan.wu <yifan.wu@bambulab.com>
Change-Id: Idb53b6bb2d3665412815222ab9a1d47948afed56