Missing diagnostic keys in relay lines, but the data is in the header

These keys are in the bandwidth file header, but there are not any similar keys in the relay lines:

• recent_priority_list_count
• recent_priority_relay_count
• recent_measurement_attempt_count
• recent_measurement_failure_count

Counting the number of times that a relay was put in the priority list is useful, so we can find out if a relay is not being prioritised.

Similarly, counting the number of times that we can't measure a relay is also useful.

Can we have these keys in each relay line:

• relay_recent_measurement_attempt_count
• relay_recent_measurement_failure_count