Get Cosmopolitan into releasable state

A new rollup tool now exists for flattening out the headers in a way
that works better for our purposes than cpp. A lot of the API clutter
has been removed. APIs that aren't a sure thing in terms of general
recommendation are now marked internal.

There's now a smoke test for the amalgamation archive and gigantic
header file. So we can now guarantee you can use this project on the
easiest difficulty setting without the gigantic repository.

A website is being created, which is currently a work in progress:
https://justine.storage.googleapis.com/cosmopolitan/index.html

libc/nt/codegen.h

@@ -1,5 +1,5 @@
 #ifndef COSMOPOLITAN_LIBC_NT_CODEGEN_H_
 #define COSMOPOLITAN_LIBC_NT_CODEGEN_H_
-#include "ape/idata.h"
+#include "ape/idata.internal.h"
 #include "ape/macros.h"
 #endif /* COSMOPOLITAN_LIBC_NT_CODEGEN_H_ */