Add autodeclination testing - no-op right now

Tools/tests-host/autodeclination_test.cpp

@@ -0,0 +1,19 @@
+
+#include <stdio.h>
+#include <unistd.h>
+#include <string.h>
+#include <systemlib/mixer/mixer.h>
+#include <systemlib/err.h>
+#include <drivers/drv_hrt.h>
+#include <px4iofirmware/px4io.h>
+#include "../../src/systemcmds/tests/tests.h"
+
+int main(int argc, char *argv[]) {
+	warnx("autodeclination test started");
+
+	if (argc < 3)
+		errx(1, "Need lat/lon!");
+
+	
+
+}