Windows compatibility fixes

VS2013 has trouble with relative include paths for apps/openssl, so move
certhash_win/apps_win.c back to apps/openssl.

gmtime_r on mingw64 fails with negative time_t, override

gmtime_s fails all of the time unit tests, override

SHUT_RD/WR are defined in newer mingw64 headers, check before overriding

apps/openssl/compat/apps_win.c

@@ -1,60 +0,0 @@
-/*
- * Public domain
- *
- * Dongsheng Song <dongsheng.song@gmail.com>
- * Brent Cook <bcook@openbsd.org>
- */
-
-#include <windows.h>
-
-#include <io.h>
-#include <fcntl.h>
-
-#include <apps.h>
-
-double
-app_tminterval(int stop, int usertime)
-{
-	static unsigned __int64 tmstart;
-	union {
-		unsigned __int64 u64;
-		FILETIME ft;
-	} ct, et, kt, ut;
-
-	GetProcessTimes(GetCurrentProcess(), &ct.ft, &et.ft, &kt.ft, &ut.ft);
-
-	if (stop == TM_START) {
-		tmstart = ut.u64 + kt.u64;
-	} else {
-		return (ut.u64 + kt.u64 - tmstart) / (double) 10000000;
-	}
-	return 0;
-}
-
-int
-setup_ui(void)
-{
-	ui_method = UI_create_method("OpenSSL application user interface");
-	UI_method_set_opener(ui_method, ui_open);
-	UI_method_set_reader(ui_method, ui_read);
-	UI_method_set_writer(ui_method, ui_write);
-	UI_method_set_closer(ui_method, ui_close);
-
-	/*
-	 * Set STDIO to binary
-	 */
-	_setmode(_fileno(stdin), _O_BINARY);
-	_setmode(_fileno(stdout), _O_BINARY);
-	_setmode(_fileno(stderr), _O_BINARY);
-
-	return 0;
-}
-
-void
-destroy_ui(void)
-{
-	if (ui_method) {
-		UI_destroy_method(ui_method);
-		ui_method = NULL;
-	}
-}

apps/openssl/compat/certhash_win.c

@@ -1,13 +0,0 @@
-/*
- * Public domain
- * certhash dummy implementation for platforms without symlinks
- */
-
-#include <apps.h>
-
-int
-certhash_main(int argc, char **argv)
-{
-	fprintf(stderr, "certhash is not enabled on this platform\n");
-	return (1);
-}