v0.2.54..v0.2.55 changeset ChainCriterion.h

diff --git a/hoot-core/src/main/cpp/hoot/core/criterion/ChainCriterion.h b/hoot-core/src/main/cpp/hoot/core/criterion/ChainCriterion.h
index 7737574..0a0a533 100644
--- a/hoot-core/src/main/cpp/hoot/core/criterion/ChainCriterion.h
+++ b/hoot-core/src/main/cpp/hoot/core/criterion/ChainCriterion.h
@@ -22,7 +22,7 @@
  * This will properly maintain the copyright information. DigitalGlobe
  * copyrights will be updated automatically.
  *
- * @copyright Copyright (C) 2015, 2016, 2017, 2018, 2019 DigitalGlobe (http://www.digitalglobe.com/)
+ * @copyright Copyright (C) 2015, 2016, 2017, 2018, 2019, 2020 DigitalGlobe (http://www.digitalglobe.com/)
  */
 #ifndef CHAINCRITERION_H
 #define CHAINCRITERION_H
@@ -79,5 +79,7 @@ private:
   friend class RemoveRef2VisitorMultipleCriterion;
 };
 
+typedef std::shared_ptr<ChainCriterion> ChainCriterionPtr;
+
 }
 #endif // CHAINCRITERION_H