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/enum/ofn.h

@@ -0,0 +1,31 @@
+#ifndef COSMOPOLITAN_LIBC_NT_ENUM_OFN_H_
+#define COSMOPOLITAN_LIBC_NT_ENUM_OFN_H_
+
+#define kNtOfnReadonly             0x00000001
+#define kNtOfnOverwriteprompt      0x00000002
+#define kNtOfnHidereadonly         0x00000004
+#define kNtOfnNochangedir          0x00000008
+#define kNtOfnShowhelp             0x00000010
+#define kNtOfnEnablehook           0x00000020
+#define kNtOfnEnabletemplate       0x00000040
+#define kNtOfnEnabletemplatehandle 0x00000080
+#define kNtOfnNovalidate           0x00000100
+#define kNtOfnAllowmultiselect     0x00000200
+#define kNtOfnExtensiondifferent   0x00000400
+#define kNtOfnPathmustexist        0x00000800
+#define kNtOfnFilemustexist        0x00001000
+#define kNtOfnCreateprompt         0x00002000
+#define kNtOfnShareaware           0x00004000
+#define kNtOfnNoreadonlyreturn     0x00008000
+#define kNtOfnNotestfilecreate     0x00010000
+#define kNtOfnNonetworkbutton      0x00020000
+#define kNtOfnNolongnames          0x00040000
+#define kNtOfnExplorer             0x00080000
+#define kNtOfnNodereferencelinks   0x00100000
+#define kNtOfnLongnames            0x00200000
+#define kNtOfnEnableincludenotify  0x00400000
+#define kNtOfnEnablesizing         0x00800000
+#define kNtOfnDontaddtorecent      0x02000000
+#define kNtOfnForceshowhidden      0x10000000
+
+#endif /* COSMOPOLITAN_LIBC_NT_ENUM_OFN_H_ */