* testsuite/winsup.api/winsup.exp: ignore stdout by default

* testsuite/winsup.api/crlf.c: non-verbose by default

* winsup.h: prune out windows headers we don't normally need
* assert.cc: add wingdi.h and winuser.h
* fhandler_console.cc: ditto
* fhandler_windows.cc: ditto
* select.cc: ditto
* spawn.cc: ditto
* strace.cc: ditto
* tty.cc: ditto
* window.cc: ditto
* hinfo.cc: add winsock.h
* syscalls.cc: add winnls.h
* uinfo.cc: ditto

* include/windows.h: optimize non-inclusion of repeat headers

winsup/cygwin/strace.cc

@@ -11,6 +11,8 @@ details. */
 #include <stdlib.h>
 #include <time.h>
 #include "winsup.h"
+#include <wingdi.h>
+#include <winuser.h>
 
 #define PROTECT(x) x[sizeof(x)-1] = 0
 #define CHECK(x) if (x[sizeof(x)-1] != 0) { small_printf("array bound exceeded %d\n", __LINE__); ExitProcess(1); }