MEDIUM: lua: Add support for the Lua 5.4

MEDIUM: lua: Add support for the Lua 5.4

On Lua 5.4, some API changes make HAProxy compilation to fail. Among other
things, the lua_resume() function has changed and now takes an extra argument in
Lua 5.4 and the error LUA_ERRGCMM was removed. Thus the LUA_VERSION_NUM macro is
now tested to know the lua version is used and adapt the code accordingly.

Here are listed the incompatibilities with the previous Lua versions :

   http://www.lua.org/manual/5.4/manual.html#8

This patch comes from the HAproxy's fedora RPM, committed by Tom Callaway :

  https://src.fedoraproject.org/rpms/haproxy/blob/db970613/f/haproxy-2.2.0-lua-5.4.patch

This patch should fix the issue #730. It must be backported to 2.2 and probably
as far as 2.0.

(cherry picked from commit 08ed98fd7963968de49593304fdd9234812845a4)
Signed-off-by: Christopher Faulet <cfaulet@haproxy.com>
(cherry picked from commit dc2e6f544fee393543cdeaae7bbb4fe57d49b409)
Signed-off-by: Christopher Faulet <cfaulet@haproxy.com>