a168343658
Add a new function, rte_hash_count, to return the number of keys that are currently stored in the hash table. Corresponding test functions are added into hash_test and hash_multiwriter test. Signed-off-by: Yipeng Wang <yipeng1.wang@intel.com> Acked-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>