esp32 WiFi连接失败后，可打印错误码分析连接失败的原因；
在事件中添加红色选框中的代码：
WiFi连接失败错误码如下所示：
REASON_UNSPECIFIED = 1,
REASON_AUTH_EXPIRE = 2,
REASON_AUTH_LEAVE = 3,
REASON_ASSOC_EXPIRE = 4,
REASON_ASSOC_TOOMANY = 5,
REASON_NOT_AUTHED = 6,
REASON_NOT_ASSOCED = 7,
REASON_ASSOC_LEAVE = 8,
REASON_ASSOC_NOT_AUTHED = 9,
REASON_DISASSOC_PWRCAP_BAD = 10, /* 11h */
REASON_DISASSOC_SUPCHAN_BAD = 11, /* 11h */
REASON_IE_INVALID = 13, /* 11i */
REASON_MIC_FAILURE = 14, /* 11i */
REASON_4WAY_HANDSHAKE_TIMEOUT = 15, /* 11i */
REASON_GROUP_KEY_UPDATE_TIMEOUT = 16, /* 11i */
REASON_IE_I
