Add an option to prevent tiny polygon reduction

main.cpp

@@ -1931,6 +1931,7 @@ int main(int argc, char **argv) {
 		{"no-polygon-splitting", no_argument, &prevent[P_POLYGON_SPLIT], 1},
 		{"no-clipping", no_argument, &prevent[P_CLIPPING], 1},
 		{"no-duplication", no_argument, &prevent[P_DUPLICATION], 1},
+		{"no-tiny-polygon-reduction", no_argument, &prevent[P_TINY_POLYGON_REDUCTION], 1},
 
 		{0, 0, 0, 0},
 	};