MINOR: hlua: Rename set_{tos, mark} to set_fc_{tos, mark}

MINOR: hlua: Rename set_{tos, mark} to set_fc_{tos, mark}

This is a complementary patch to "MINOR: tcp-act: Rename "set-{mark,tos}"
to "set-fc-{mark,tos}"", but for the Lua API.

set_mark and set_tos were kept as aliases for set_fc_mark and set_fc_tos
but they were marked as deprecated.

Using this opportunity to reorder set_mark and set_tos by alphabetical
order.