debug: cleanup
ogl_tex, tex: use full-width types to avoid truncation warnings
wdbg_sym.cpp: skip __suppress and __profile symbols; add additional hex
display for floats; cleanup
wdll_ver.cpp: cppdoc+cleanup (remove non-reentrant C interface, replace
with std::string)
sysdep: add cppdoc
everything else: flag parameters are now consistently size_t instead of
int (avoids warnings, allows slightly better code on x64)
This was SVN commit r6392.
