Added 32 bit angle

Angle32.h

@@ -0,0 +1,21 @@
+#include "AngleUsing.h"
+
+#include "Angle.h"
+#include <math.h>
+
+typedef AngleUsing<signed long> Angle32;
+
+template <> Angle32::AngleUsing(float angle) {
+  if (!isfinite(angle)) {
+    value = 0;
+    return;
+  }
+
+  // map float [-180..180) to integer [-2147483648..2147483647]
+  this->value = (signed short)((angle / 360.0F) * 4294967295.0F);
+}
+
+template <> float Angle32::ToFloat() const {
+  float f = ((this->value * 180) / 2147483648.0F);
+  return f;
+}