Lua: Added support for FT_EUI64.

Bug: 10603
Change-Id: I21da496834b83466585f5b77f87970e3fab28b12
Reviewed-on: https://code.wireshark.org/review/4894
Reviewed-by: Michael Mann <mmann78@netscape.net>
Reviewed-by: Hadriel Kaplan <hadrielk@yahoo.com>
Reviewed-by: Stig Bjørlykke <stig@bjorlykke.org>