Fix use of M_PI in steering_controllers_library and tricycle_controller (#1536)

Author: traversaro

steering_controllers_library/src/steering_odometry.cpp

@@ -17,6 +17,8 @@
  * Author: Dr. Ing. Denis Stogl
  */
 
+#define _USE_MATH_DEFINES
+
 #include "steering_controllers_library/steering_odometry.hpp"
 
 #include <cmath>

steering_controllers_library/test/test_steering_odometry.cpp

@@ -12,6 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+#define _USE_MATH_DEFINES
+
 #include <gmock/gmock.h>
 
 #include "steering_controllers_library/steering_odometry.hpp"

tricycle_controller/src/tricycle_controller.cpp

@@ -16,6 +16,8 @@
  * Author: Tony Najjar
  */
 
+#define _USE_MATH_DEFINES
+
 #include <memory>
 #include <queue>
 #include <string>