move timer inits to files where it is used

millis.c

@@ -4,6 +4,17 @@
 
 volatile unsigned long _millis; // for millis tick !! Overflow every ~49.7 days
 
+// Timer0
+// 1ms IRQ
+// Used for millis() timing
+void timer0_init()
+{
+    TCCR0A = (1<<WGM01); //TIMER0 SET-UP: CTC MODE
+    TCCR0B = (1<<CS01)|(1<<CS00); // PS 1:64
+    OCR0A = 249; // 1ms reach for clear (16mz:64=>250kHz:250-=>1kHz)
+    TIMSK0 |= 1<<OCIE0A;	 //IRQ on TIMER0 output compareA
+}
+
 ISR (TIMER0_COMPA_vect)
 {
 	_millis++; // INC millis tick