Enable yielding from interrupts

[zeux]

Discussed in #208

^{Originally posted by morgoth990 November 16, 2021}
I'm trying to limit the execution time calling lua_yield() from the interrupt callback but seems to trigger an exception.
It's possible to yield from the interrupt callback or how can I achieve the same result?

We'll need to look at the patch I suggested internally to make sure it doesn't affect codegen on any compilers negatively as well as document what's allowed and what's not allowed from interrupts (that are somewhat akin to POSIX signals in that very few operations are interrupt-safe).

[LoganDark]

Pre-emptive multitasking in Luau is an interesting concept. Would love to see some more research into this.