Missed out some that would probably result in too many links.
Added FT_FRAMENUM_RETRANS_PREV and FT_FRAMENUM_RETRANS_NEXT to enum,
these display as arrows like REQUEST and RESPONSE do.
Change-Id: I6e8d222955f2ba59a713e8a389837b55a1c7f262
Reviewed-on: https://code.wireshark.org/review/24600
Petri-Dish: Martin Mathieson <martin.r.mathieson@googlemail.com>
Tested-by: Petri Dish Buildbot
Reviewed-by: Martin Mathieson <martin.r.mathieson@googlemail.com>