table: add cuckoo hash

table: add cuckoo hash

This patch provides table apis for dosig version of cuckoo hash
via  rte_table_hash_cuckoo_dosig_ops

The following apis are implemented for cuckoo hash
	rte_table_hash_cuckoo_create
	rte_table_hash_cuckoo_free
	rte_table_hash_cuckoo_entry_add
	rte_table_hash_cuckoo_entry_delete
	rte_table_hash_cuckoo_lookup_dosig
	rte_table_hash_cuckoo_stats_read

Signed-off-by: Sankar Chokkalingam <sankarx.chokkalingam@intel.com>
Signed-off-by: Guruprasad Rao <guruprasadx.rao@intel.com>
Acked-by: Cristian Dumitrescu <cristian.dumitrescu@intel.com>