create run dir (mostly for windows) if it does not exist yet

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@16262 d0543943-73ff-0310-b7d9-9358b9ac24b2

src/switch.c

@@ -730,6 +730,7 @@ int main(int argc, char *argv[])
 
 	apr_pool_create(&pool, NULL);
 	
+	switch_dir_make_recursive(SWITCH_GLOBAL_dirs.run_dir, SWITCH_DEFAULT_DIR_PERMS, pool);
 
 	if (switch_file_open(&fd,
 						 pid_path,