build: Makefile.am corrections (separate Makefile.am for tests)

Change-Id: I69f442d5b7dee7fd7c20d10bd4229e692ee1193d
diff --git a/tests/Makefile.am b/tests/Makefile.am
new file mode 100644
index 0000000..8ab0c81
--- /dev/null
+++ b/tests/Makefile.am
@@ -0,0 +1,21 @@
+
+LDADD = ../libndn-cpp.la
+
+noinst_PROGRAMS = test-encode-decode-benchmark \
+	test-encode-decode-data \
+	test-encode-decode-forwarding-entry \
+	test-encode-decode-interest \
+	test-get-async \
+	test-publish-async
+
+test_encode_decode_benchmark_SOURCES = test-encode-decode-benchmark.cpp
+
+test_encode_decode_data_SOURCES = test-encode-decode-data.cpp
+
+test_encode_decode_forwarding_entry_SOURCES = test-encode-decode-forwarding-entry.cpp
+
+test_encode_decode_interest_SOURCES = test-encode-decode-interest.cpp
+
+test_get_async_SOURCES = test-get-async.cpp
+
+test_publish_async_SOURCES = test-publish-async.cpp