record each db duration like record-db-qps feature

[pepezzzz]

Feature Request

Is your feature request related to a problem? Please describe:

record each db duration when types of workload use different db in the same tidb cluster.
Describe the feature you'd like:

like record-db-qps feature, a new parameter record-db-duration in tidb configuration file controls this feature enable or not .
After feature enable, these metrics related to db duration send to Prometheus.
Describe alternatives you've considered:

N/A
Teachability, Documentation, Adoption, Migration Strategy:

N/A

[zz-jason]

I think it's duplicated with #17688. close due to duplicated.

[zz-jason]

let's discuss this feature request at #17688.