create overloaded functions for send and broadcast for easy usage
void sendTXT(uint8_t num, uint8_t * payload, size_t length = 0);
void sendTXT(uint8_t num, const uint8_t * payload, size_t length = 0);
void sendTXT(uint8_t num, char * payload, size_t length = 0);
void sendTXT(uint8_t num, const char * payload, size_t length = 0);
void sendTXT(uint8_t num, String payload);
void broadcastTXT(uint8_t * payload, size_t length = 0);
void broadcastTXT(const uint8_t * payload, size_t length = 0);
void broadcastTXT(char * payload, size_t length = 0);
void broadcastTXT(const char * payload, size_t length = 0);
void broadcastTXT(String payload);
void sendBIN(uint8_t num, uint8_t * payload, size_t length);
void sendBIN(uint8_t num, const uint8_t * payload, size_t length);
void broadcastBIN(uint8_t * payload, size_t length);
void broadcastBIN(const uint8_t * payload, size_t length);
send URL as payload on WStype_CONNECTED event
move Sec-WebSocket-Accept generation in function
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