Merge bench_lua into LuaJIT-test-cleanup?

[siddhesh]

The set of benchmarks in the LuaJIT-test-cleanup project are quite extensive but they lack a decent driver and timing methodology, which makes them kinda useless. This project has a good driver but not as many tests as LuaJIT-test-cleanup.

Given that LuaJIT-test-cleanup is eventually supposed to be integrated into LuaJIT proper, would you be opposed to me using your driver and related methodologies in the LuaJIT-test-cleanup and eventually in the LuaJIT project? I'll obviously give you full credit for both and retain licenses, etc.

I understand that this may never actually make it into the official repo but I'd like to give it a shot anyway, in the interest of making some forward progress in the project.

[vkrasnov]

Hi, thank you for the PR, I will go over it in a couple of days.
You are more than welcome to use it as you see fit.
I might actually add LuaJIT-test-cleanup as a dependency too.