pls public the internal/cgroups package

[kkHAIKE]

i thx it very useful 😊

[spencercjh]

I think it is very useful 😊

[spencercjh]

I think it is very useful 😊

But as many have considered, cgroups will lose its association with this repo once the package is open and completed. After all, this repo is only used for autosetmaxprocs.

[stouset]

At least just expose a way to fetch what the value would be without actually setting GOMAXPROCS.