Import old unfinished FT232R bit-banging code for sim sniffing

This code never really worked due to large sample clock jitter, lost
USB messages and the lack of CLK sniffing ability

ft232r/Makefile

@@ -0,0 +1,10 @@
+LDFLAGS=-lftdi
+
+bitbang: bitbang.o soft_uart.o
+	$(CC) $(LDFLAGS) -o $@ $^
+
+clean:
+	rm -f bitbang bitbang.o soft_uart.o
+
+%: %.o
+	$(CC) $(LDFLAGS) -o $@ $^