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/nexgen32e/cachesize.h

@@ -3,13 +3,11 @@
 #if !(__ASSEMBLER__ + __LINKER__ + 0)
 COSMOPOLITAN_C_START_
 
-enum CpuCacheType {
-  kCpuCacheTypeData = 1,
-  kCpuCacheTypeInstruction,
-  kCpuCacheTypeUnified,
-};
+#define kCpuCacheTypeData        1
+#define kCpuCacheTypeInstruction 2
+#define kCpuCacheTypeUnified     3
 
-unsigned getcachesize(enum CpuCacheType, int);
+unsigned getcachesize(int, int);
 
 COSMOPOLITAN_C_END_
 #endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */