Cleanup: spelling in comments

tools/check_source/check_spelling_config.py

@@ -47,6 +47,7 @@ dict_custom = {
     "anisotropy",
     "atomicity",
     "attenuations",
+    "backlit",
     "bindless",
     "bitwise",
     "blocky",
@@ -74,6 +75,7 @@ dict_custom = {
     "constructible",
     "coplanarity",
     "copyable",
+    "correctors",
     "counterforce",
     "criterium",
     "crosshair",
@@ -491,6 +493,7 @@ dict_custom = {
     "userless",
     "vectorial",
     "vectorization",
+    "vectorize",
     "vectorized",
     "versionable",
     "videogrammetry",
@@ -570,6 +573,7 @@ dict_custom = {
     "blitting",
     "boids",
     "booleans",
+    "backface",
     "codepage",
     "contructor",
     "decimator",