added test subfolder 'executeOnly' to makefile (only if MAINTAINER_MODE is defined)

Makefile.am

 # Process this file with automake to produce Makefile.in
 SUBDIRS = libcdi src/lib/ncl src/lib/yac  src/lib/gradsdes src contrib test/data test
 if MAINTAINER_MODE
-SUBDIRS += test/bandit_tests
+SUBDIRS += test/bandit_tests test/executeOnly
 endif
 #
 ACLOCAL_AMFLAGS = -I m4 -I libcdi/m4