Phobos 3 Development is Open!

[ryuukk_]

https://github.com/dlang/phobos/pull/8925/files#diff-647aa2ce9ebedd6759a2f1c55752f0279de8ae7ba55e3c270bd59e1f8c1a5162R131

Why can't D have its own types?


Just importing this introduces dependencies on other system 
modules

```D
import core.stdc.config;
import core.stdc.stddef; // for wchar_t
import core.stdc.signal; // for sig_atomic_t
import core.stdc.wchar_; // for wint_t
```

Wich makes phobos harder to use on platforms without these

I think Phobos as a base shouldn't depend on libc, only specific 
parts eg: network/event modules for example, so it becomes easier 
to port when required