Clean up dependencies.

Move ModeA/C demodulator to demod_2000 (decoding stays in mode_ac.c)
Remove dependency on interactive.c in stats.c
faup1090 then doesn't need interactive.c at all.

Makefile

@@ -33,11 +33,11 @@ dump1090: dump1090.o anet.o interactive.o mode_ac.o mode_s.o net_io.o crc.o demo
 view1090: view1090.o anet.o interactive.o mode_ac.o mode_s.o net_io.o crc.o stats.o cpr.o icao_filter.o track.o util.o
 	$(CC) -g -o $@ $^ $(LIBS) $(LDFLAGS)
 
-faup1090: faup1090.o anet.o interactive.o mode_ac.o mode_s.o net_io.o crc.o stats.o cpr.o icao_filter.o track.o util.o
+faup1090: faup1090.o anet.o mode_ac.o mode_s.o net_io.o crc.o stats.o cpr.o icao_filter.o track.o util.o
 	$(CC) -g -o $@ $^ $(LIBS) $(LDFLAGS)
 
 clean:
-	rm -f *.o dump1090 view1090 cprtests crctests
+	rm -f *.o dump1090 view1090 faup1090 cprtests crctests
 
 test: cprtests
 	./cprtests