Update sn3d.h #8082

Job	Run time
classicmode_1d_3dgrid	2m 17s
classicmode_3d	3m 17s
kilonova_1d_1dgrid	3m 56s
kilonova_1d_3dgrid	4m 32s
kilonova_2d_2dgrid	4m 0s
kilonova_2d_2dgrid_barnesthermalisation	2m 40s
kilonova_2d_2dgrid_expansionopac	5m 23s
kilonova_2d_2dgrid_xcomgammaphotoion	4m 43s
kilonova_2d_3dgrid	4m 52s
nebular_1d_3dgrid	4m 35s
nebular_1d_3dgrid_limitbfest	4m 15s
classicmode_1d_3dgrid testmode ON	4m 17s
classicmode_3d testmode ON	4m 16s
kilonova_1d_1dgrid testmode ON	8m 50s
kilonova_1d_3dgrid testmode ON	9m 50s
kilonova_2d_2dgrid testmode ON	14m 47s
kilonova_2d_2dgrid_barnesthermalisation testmode ON	13m 0s
kilonova_2d_2dgrid_expansionopac testmode ON	1h 0m 47s
kilonova_2d_2dgrid_xcomgammaphotoion testmode ON	12m 57s
kilonova_2d_3dgrid testmode ON	14m 54s
nebular_1d_3dgrid testmode ON	20m 56s
nebular_1d_3dgrid_limitbfest testmode ON	20m 54s
combine_checksums	8s
	3h 50m 6s

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