Please Multi-Thread the Code gen Compiler and add Progress meter or quantity so we can know how close the compiled runner is

[PlasteredCrab]

When doing the compiling of the runner it takes a long time so multi-threading it would be really cool as well as a way to know how many functions are still needing to be compiled.

This is how it looks currently:

Something like

Compiling...
[1312 / 23845]
[1313 / 23845]
etc
etc

would be nice so I know when I can just leave it and come back to know that it is almost done.

I would contribute this code myself if I wasn't such a noob, but thought it was something that could make the process of making these not so painful haha.

Thank you!