v2.2.25
all of the __internal notations really should be __hidden
port new env-var controlled debug output to windows.
fixup error return from simple smi
for smi functions, bail out if either return code is nonzero, or if res[0] is nonzero
default visibility to hidden for libsmbios_c
add common/ include directory and move defines like dbg_print, FSEEK, etc to them so we dont pollute other users namespaces.