Make dispex.h generated by IDL-file.
Make wbemads.h generated by IDL-file.
Make wbemdisp.h generated by IDL-file.
Make wbemprov.h generated by IDL-file.
Make wbemtran.h generated by IDL-file.
Rework wbemcli.idl using IDL-syntax.
Generate headers by IDL.
Adjust dispex.h for IID_...variants of guids, which are different handled
by wild in comparison to midl.
Add additional IDL-files to build.  Additionally regenerated configure.  It was out-dated.