sendPOSI command change (double for lat/lon/h) (#111)

* Updated POSI to use doubles for lat/lon/alt, as step size for floats was unacceptably large at high longitudes.

TestScripts/C Tests/SimuTests.h

@@ -16,7 +16,7 @@ int doSIMUTest(int value, float expected)
 	int result = pauseSim(sock, value);
 	if (result >= 0)
 	{
-		result = getDREF(sock, dref, &actual, &size);
+		result = getDREF(sock, dref, actual, &size);
 	}
 	closeUDP(sock);
 	if (result < 0)
@@ -78,4 +78,4 @@ int testSIMU_Toggle()
 	return 0;
 }
 
-#endif
+#endif