Will the core.stdc module be updated for newer versions of C?

[solidstate1991]

While for the most part it still works very well, however when 
porting Mago I found a few functions that are not present in C99 
(most notably wcsncpy_s).

While I can write my own functions to do the same (already done 
this with C++'s array since a few classes inherited from 
std::vector, hopefully I don't need to fiddle too much with it on 
the Debug engine to limit reliance on GC) I think it would be a 
good idea to do some updates on the runtime library in this 
regard, especially as it's a very easily available @nogc library 
too.