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/str/tpdecode.ncabi.c

@@ -19,8 +19,8 @@
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/errno.h"
 #include "libc/str/str.h"
-#include "libc/str/tpdecode.h"
-#include "libc/str/tpdecodecb.h"
+#include "libc/str/tpdecode.internal.h"
+#include "libc/str/tpdecodecb.internal.h"
 
 forceinline int getbyte(void *arg, uint32_t i) {
   return ((const unsigned char *)arg)[i];
@@ -32,7 +32,7 @@ forceinline int getbyte(void *arg, uint32_t i) {
  * @param s is a NUL-terminated string
  * @return number of bytes successfully consumed or -1 w/ errno
  * @note synchronization is performed
- * @see libc/str/tpdecodecb.h (for implementation)
+ * @see libc/str/tpdecodecb.internal.h (for implementation)
  */
 int(tpdecode)(const char *s, wint_t *out) {
   return tpdecodecb(out, (unsigned char)s[0], getbyte, (void *)s);