moved stream operator to axcore

source/VisionX/components/pointcloud_core/test/PCLUtilitiesTest.cpp

@@ -41,15 +41,6 @@ namespace pcl
         return lhs.indices == rhs.indices;
     }
 }
-namespace std
-{
-    template <class T, class U>
-    std::ostream& operator<<(std::ostream& os, const std::pair<T, U>& rhs)
-    {
-        return os << "(" << rhs.first << ", " << rhs.second << ")";
-    }
-}
-
 
 constexpr uint32_t POINT_CLOUD_SIZE = 64;