Build History for pull/144

vi_vendor_things should be collected

Update type for find_vi_vendor_info

Implement v-i vendor info sub options

Implement VI vendor thing parsing and serializing The VI vendor info still treats the option data opaquely instead of as a sequence of dhcp-like TLV.

Implement VI vendor thing parsing and serializing The VI vendor info still treats the option data opaquely instead of as a sequence of dhcp-like TLV.