interest: Add setExclude function for Interest abstraction

Change-Id: I09a7e84e695d6fb2d4a5ac8eeb23071ce86b6d5d
diff --git a/src/interest.hpp b/src/interest.hpp
index c4d7bc6..168cad1 100644
--- a/src/interest.hpp
+++ b/src/interest.hpp
@@ -155,6 +155,9 @@
   void 
   setMaxSuffixComponents(int maxSuffixComponents) { maxSuffixComponents_ = maxSuffixComponents; }
   
+  void
+  setExclude(const Exclude& exclude) { exclude_ = exclude; }
+
   void 
   setChildSelector(int childSelector) { childSelector_ = childSelector; }