smbios3 tables are not properly detected

[superm1]

Some systems offer both traditional smbios tables and smbios3 tables. libsmbios usually works OK in these instances.

Other systems (such as the XPS 9365) offer ONLY SMBIOS3 tables. libsmbios isn't able to find table entry points (because they don't exist).
Current code:
https://github.com/dell/libsmbios/blob/master/src/libsmbios_c/smbios/smbios_obj.c#L446

3ff0ae3 made libsmbios claim that it supported smbios3 tables when it uh, really didn't.

the fwupd project has an example of how to parse smbios 3.0 tables.
https://github.com/hughsie/fwupd/blob/master/src/fu-smbios.c#L282

[superm1]

I've made a stab at doing this. It works pretty well for me on an XPS 9365 (which uses SMBIOS 3.0).
https://github.com/dell/libsmbios/tree/smbios3

[superm1]

5f84035