add pico_multi_booter code

Code/pico_multi_booter/picomite/lwipopts.h

@@ -0,0 +1,33 @@
+/* 
+ * @cond
+ * The following section will be excluded from the documentation.
+ */
+#ifndef _LWIPOPTS_H
+#define _LWIPOPTS_H
+
+// Generally you would define your own explicit list of lwIP options
+// (see https://www.nongnu.org/lwip/2_1_x/group__lwip__opts.html)
+//
+// This example uses a common include to avoid repetition
+#include "lwipopts_examples_common.h"
+#include "ffconf.h"
+//#undef TCP_WND
+//#define TCP_WND  16384
+
+//#define LWIP_ALTCP               1
+//#define LWIP_ALTCP_TLS           1
+//#define LWIP_ALTCP_TLS_MBEDTLS   1
+#define DNS_TABLE_SIZE           1
+//#define IP_SOF_BROADCAST         1
+//#define IP_SOF_BROADCAST_RECV    1
+#define LWIP_DEBUG 1
+#define TFTP_MAX_FILENAME_LEN FF_MAX_LFN
+//#define ALTCP_MBEDTLS_DEBUG  LWIP_DBG_ON
+#define MEMP_NUM_SYS_TIMEOUT   (LWIP_NUM_SYS_TIMEOUT_INTERNAL + 3) // <-------- +1 for MQTT
+extern int MMerrno;
+extern char MMErrMsg[]; 
+#define LWIP_PLATFORM_DIAG(x) {MMerrno=17;}
+#include <stdio.h>
+#include <stdlib.h>
+#endif
+/*  @endcond */