[Conf] Score MIME_OBFUSCATED_ARCHIVE to 8 points

conf/scores.d/mime_types_group.conf

@@ -43,6 +43,11 @@ symbols = {
         description = "Encrypted archive in a message";
         one_shot = true;
     }
+    "MIME_OBFUSCATED_ARCHIVE" {
+        weight = 8.0;
+        description = "Archive has files with clear obfuscation signs";
+        one_shot = true;
+    }
     "MIME_EXE_IN_GEN_SPLIT_RAR" {
         weight = 5.0;
         description = "EXE file in RAR archive with generic split extension (e.g. .001)";