Add more upstream source metrics such as binlog QPS

[GMHDBJD]

Feature Request

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

When replication delay rises, we can only see downstream QPS but not upstream, add upstream QPS can simply find the root cause and calculate the performance between upstream and downstream
Describe the feature you'd like:

We can simply calculate upstream qps by ‘show master status' or by relay
Describe alternatives you've considered:

Teachability, Documentation, Adoption, Migration Strategy: