new feature: rcmd 0x17 wifi sniffer on/off

include/globals.h

@@ -72,6 +72,7 @@ typedef struct {
   uint8_t wifichancycle; // wifi channel switch cycle [seconds/100]
   uint8_t blescantime;   // BLE scan cycle duration [seconds]
   uint8_t blescan;       // 0=disabled, 1=enabled
+  uint8_t wifiscan;      // 0=disabled, 1=enabled
   uint8_t wifiant;       // 0=internal, 1=external (for LoPy/LoPy4)
   uint8_t vendorfilter;  // 0=disabled, 1=enabled
   uint8_t rgblum;        // RGB Led luminosity (0..100%)

include/rcommand.h

@@ -8,6 +8,7 @@
 #include "lorawan.h"
 #endif
 #include "macsniff.h"
+#include "wifiscan.h"
 #include <rom/rtc.h>
 #include "cyclic.h"
 #include "timekeeper.h"

include/wifiscan.h

@@ -8,6 +8,7 @@
 #include "hash.h"
 
 void wifi_sniffer_init(void);
+void switch_wifi_sniffer (uint8_t state);
 static void IRAM_ATTR wifi_sniffer_packet_handler(void *buff, wifi_promiscuous_pkt_type_t type);
 void switchWifiChannel(TimerHandle_t xTimer);