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.internal.h

@@ -0,0 +1,26 @@
+#ifndef COSMOPOLITAN_LIBC_STR_TPDECODE_H_
+#define COSMOPOLITAN_LIBC_STR_TPDECODE_H_
+#if !(__ASSEMBLER__ + __LINKER__ + 0)
+COSMOPOLITAN_C_START_
+
+int tpdecode(const char *, wint_t *) paramsnonnull((1)) libcesque;
+
+#ifndef __STRICT_ANSI__
+#define tpdecode(S, OUT) __tpdecode(S, OUT)
+forceinline int __tpdecode(const char *s, wint_t *out) {
+  int ax;
+  if (0 <= *s && *s <= 0x7f) {
+    *out = *s;
+    return 1;
+  }
+  asm("call\ttpdecode"
+      : "=a"(ax), "=m"(*(char(*)[6])s)
+      : "D"(s), "S"(out)
+      : "cc");
+  return ax;
+}
+#endif
+
+COSMOPOLITAN_C_END_
+#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
+#endif /* COSMOPOLITAN_LIBC_STR_TPDECODE_H_ */