Move unittests into a more perceivable directory

unittests/autodeclination_test.cpp

@@ -0,0 +1,28 @@
+
+#include <stdio.h>
+#include <stdlib.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"
+#include <geo/geo.h>
+
+int main(int argc, char *argv[]) {
+	warnx("autodeclination test started");
+
+	if (argc < 3)
+		errx(1, "Need lat/lon!");
+
+	char* p_end;
+
+	float lat = strtod(argv[1], &p_end);
+	float lon = strtod(argv[2], &p_end);
+
+	float declination = get_mag_declination(lat, lon);
+
+	printf("lat: %f lon: %f, dec: %f\n", lat, lon, declination);
+
+}