Added wavelet_tree benchmark to build-test

and build-test-clean target.

Author: simongog

test/Makefile

@@ -82,6 +82,7 @@ build-test: $(EXECS)
 	cd ../benchmark/indexing_extract; make
 	cd ../benchmark/rrr_vector; make
 	cd ../benchmark/document_retrieval; make
+	cd ../benchmark/wavelet_trees; make 
 
 build-test-clean: clean
 	cd ../tutorial; make clean
@@ -91,6 +92,7 @@ build-test-clean: clean
 	cd ../benchmark/indexing_extract; make clean-build
 	cd ../benchmark/rrr_vector; make clean-build
 	cd ../benchmark/document_retrieval; make clean-build
+	cd ../benchmark/wavelet_trees; make clean-build
 
 generators: BitVectorGenerator.x IntVectorGenerator.x