I want generate-wrapper.py to support the optional header-discovery controls --include-dir …

I want generate-wrapper.py to support the optional header-discovery controls --include-dir …: a task in MiMo-V2.6-RL-harbor-code: MiMo-V2.6-RL Code (Harbor) (Harbor dataset). --include-dir DIR may be supplied more than once, and each directory should be added to the C preprocessor include search…

The task

`--include-dir DIR` may be supplied more than once, and each directory should be added to the C preprocessor include search path used for parsing the `--include` headers. For example, if `public.h` contains `#include "dep.h"` and `dep.h` is only in `extra/`, then adding `--include-dir extra` should let the command…

Part of FineEnvs/MiMo-V2.6-RL-harbor-code.