Tests/syncall (#291)

* SyncAll test case would run Sync

* Despecialized name for argument reader

* Rename sync-test to team-sync-test as it uses teams

* Another stab at probing NUM_GPUS

tests/functional_tests/test_driver.cpp

@@ -197,7 +197,7 @@ int main(int argc, char *argv[]) {
   /**
    * Now grab the arguments from rocshmem.
    */
-  args.get_rocshmem_arguments();
+  args.get_arguments();
 
   /**
    * Using the arguments we just constructed, call the tester factory