1) Improve the '-S' option algorithm, to get indirect names, from
DW_AT_specification and DW_AT_abstract_origin attributes, to use
those names in the comparison for member and inlines functions.
2) Correct incorrect calculation of 'pointer_size' for proprietary
EM_PPC64 machine type.
3) Changes required when porting the samples to Windows
4) Include additional information for the Windows version.
so all is easier for those without getopt() to build.
To avoid unwanted dependencies dwgetopt.h and dwgetopt.c
are in both dwarfdump and libdwarf directories.
