discover native modules from process.moduleLoadList ...

... instead of using a hard-coded list
I debated just picking my favorites, but it's this very scenario where our favorite (`path`) wasn't the problem.  Flexing them all runs nearly instantaneously, so I don't see the harm in it.  I debated writing one file that required them all, then running `SandboxedModule.require()` on that file, but then it'd be much less discoverable which module did bad things.