OF 1.3 Compliance: Missing class ofp_group_stats

[abaruchi]

Class ofp_group_stats is missing.
Page 70 of 1.3 Spec.

struct ofp_group_stats {
	uint16_t length;
	uint8_t pad[2];
	uint32_t group_id;
	uint32_t ref_count;
	uint8_t pad2[4];
	uint64_t packet_count;
	uint64_t byte_count;
	uint32_t duration_sec;
	uint32_t duration_nsec;  
	struct ofp_bucket_counter bucket_stats[0];
};
OFP_ASSERT(sizeof(struct ofp_group_stats) == 40);