Invoke callbacks under make check

Add a simple test that invokes all the callbacks.  There
are no assertions but there is some value in ensuring
the application will at least run without crashing.

Change-Id: I117bff261202ae7e642094a659a954328351eac1
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
diff --git a/src/test/.gitignore b/src/test/.gitignore
index 9c938e1..c286eac 100644
--- a/src/test/.gitignore
+++ b/src/test/.gitignore
@@ -13,3 +13,4 @@
 /callbackgroupgentest
 /conditiongentest.hpp
 /conditiongentest
+/callbacktest