[ASTERIXDB-2098][TEST] Adding UDF execution tests for SQLPP

- user model changes: no
- storage format changes: no
- interface changes: no

Details:
1. Added test cases for UDFs to SQLPP.
2. Added SqlppExecutionIT to test UDFs in SQLPP.

Change-Id: I3dae4300589f1b16ea5abbf13d81b686a2283add
Reviewed-on: https://asterix-gerrit.ics.uci.edu/2009
Sonar-Qube: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Tested-by: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Contrib: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Integration-Tests: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Reviewed-by: Michael Blow <mblow@apache.org>
diff --git a/asterixdb/asterix-app/src/test/resources/runtimets/testsuite_sqlpp.xml b/asterixdb/asterix-app/src/test/resources/runtimets/testsuite_sqlpp.xml
index 68b4227..c87c44b 100644
--- a/asterixdb/asterix-app/src/test/resources/runtimets/testsuite_sqlpp.xml
+++ b/asterixdb/asterix-app/src/test/resources/runtimets/testsuite_sqlpp.xml
@@ -8271,7 +8271,7 @@
       </compilation-unit>
     </test-case>
   </test-group>
-  <test-group>
+  <test-group name="big-object">
     <test-case FilePath="big-object">
       <compilation-unit name="big_object_sort">
         <output-dir compare="Text">big_object_sort</output-dir>