Export FCLCollisionObject for Windows

Author: jslee02

dart/collision/fcl/FCLCollisionObject.hpp

@@ -36,12 +36,14 @@
 #include <dart/collision/CollisionObject.hpp>
 #include <dart/collision/fcl/BackwardCompatibility.hpp>
 
+#include <dart/Export.hpp>
+
 #include <string>
 
 namespace dart {
 namespace collision {
 
-class FCLCollisionObject : public CollisionObject
+class DART_API FCLCollisionObject : public CollisionObject
 {
 public:
   friend class FCLCollisionDetector;