* changes: Add one field(sampling_rate_denom) in NetworkDnsEventReported for recording sample rate. Add NS_R_INTERNAL_ERROR item into NsRcode Refine the proto dns_resolver.proto
* changes: Add one field(sampling_rate_denom) in NetworkDnsEventReported for recording sample rate. Add NS_R_INTERNAL_ERROR item into NsRcode Refine the proto dns_resolver.proto