Fix some -Wimplicit-function-declaration errors on Windows (GH-15325)

While clang is picky about these, MSVC doesn't seem to care and would
only report the calls to undeclared functions as errors during link
time.  Still, obviously, MSVC is fine with having the declarations
during compile time.

Author: cmb69

ext/standard/proc_open.c

@@ -23,6 +23,9 @@
 #include "SAPI.h"
 #include "main/php_network.h"
 #include "zend_smart_str.h"
+#ifdef PHP_WIN32
+# include "win32/sockets.h"
+#endif
 
 #ifdef HAVE_SYS_WAIT_H
 #include <sys/wait.h>

sapi/cli/php_cli_server.c

@@ -24,6 +24,7 @@
 #ifdef PHP_WIN32
 # include <process.h>
 # include <io.h>
+# include "win32/console.h"
 # include "win32/time.h"
 # include "win32/signal.h"
 # include "win32/php_registry.h"