Switched from NTPClient to lwIPs internal SNTP client.

This has the advantage of being able to set DST automatically.

include/effect_big_clock.h

@@ -10,7 +10,7 @@ private:
 	CRGB _color_seconds_moving_light = CRGB(0x666600);
     CRGB _color_seconds_moving_dark = CRGB(0x660000);
 
-    void _draw_seconds();
+    void _draw_seconds(uint8_t seconds);
     void _draw_border_pixel(accum88 pos, CRGB* color);
 
 public:

include/ntp.h

@@ -1,9 +1,5 @@
 #pragma once
 
-#include <NTPClient.h>
-#include "my_wifi.h"
 #include "config.h"
-
-extern NTPClient ntpClient;
-void updateCallback(NTPClient* c);
+void time_changed();
 void ntp_setup();