[PATCH] Add missing header wrappers under include/

[Florian Weimer]

* Florian Weimer:

> With a complete set of wrapper headers, it will be possible to check
> for automatically for new installed headers which lack such wrappers.

We also need include/rpcsvc/bootparam.h and include/rpcsvc/yp_prot.h if
we want to go into this direction.

I think we have to whitelist the .x non-headers which are installed as
if they were real C/C++ headers.  Obviously, we do not need a wrapper
for them.

Are missing wrapper headers something we should test for in a generic
fashion at all?

Thanks,
Florian