Add message at top of codegen files to avoid overwriting them

src/core/strings/str8/str8_list.c

@@ -1,3 +1,7 @@
+/**
+ * THIS FILE IS AUTOMATICALLY GENERATED. ANY MODIFICATIONS TO IT WILL BE OVERWRITTEN
+ */
+
 #include "./str8_list.h"
 #include "../../../common/aliases/aliases.h"
 #include "./str8.h"

src/core/strings/str8/str8_list.h

@@ -1,3 +1,7 @@
+/**
+ * THIS FILE IS AUTOMATICALLY GENERATED. ANY MODIFICATIONS TO IT WILL BE OVERWRITTEN
+ */
+
 #ifndef STR8_LIST_H
 #define STR8_LIST_H