Support LuaJIT.

[ccuser44]

It would be great if Remodel had support for LuaJIT.

LuaJIT is a very fast JIT compiler for Lua which is used in a considerable amount of workflows.
It would be very great to be able to use Remodel directly in LuaJIT instead of creating all kinds of wrappers and binders.

Adding support for multiple Lua dialects doesn't really hurt as not too much code is required to do so. Quite the contrary, the more people can use it in their desired workflows the better.