add rotation for stryker vtol

src/lib/conversion/rotation.cpp

@@ -233,5 +233,10 @@ rotate_3f(enum Rotation rot, float &x, float &y, float &z)
 			y = -y;
 			return;
 		}
+	case ROTATION_PITCH_90_ROLL_90: {
+			tmp = x; x = y;
+			y = -z; z = -tmp;
+			return;
+		}
 	}
 }

src/lib/conversion/rotation.h

@@ -77,6 +77,7 @@ enum Rotation {
 	ROTATION_ROLL_270_YAW_270    = 26,
 	ROTATION_ROLL_180_PITCH_270  = 27,
 	ROTATION_PITCH_90_YAW_180    = 28,
+	ROTATION_PITCH_90_ROLL_90	 = 29,
 	ROTATION_MAX
 };
 
@@ -115,7 +116,8 @@ const rot_lookup_t rot_lookup[] = {
 	{  0, 270,   0 },
 	{270,   0, 270 },
 	{180, 270,   0 },
-	{  0,  90, 180 }
+	{  0,  90, 180 },
+	{ 90,  90,   0 }
 };
 
 /**