Support logging of metrics for Querybook

[czgu]

We can implement something similar to airflow's implementation of metric logging via statsD https://airflow.apache.org/docs/apache-airflow/stable/logging-monitoring/metrics.html This can be used for prometheus as well as via exporter as noted here https://www.redhat.com/en/blog/monitoring-apache-airflow-using-prometheus

Further details are required. Here are some of the metrics we can support:

• request latency
• number of request
• number of failed SQL session
• number of failed system tasks
• number of failed scheduled datadoc tasks
• redis read/write latency
• number of query execution
• number of unexpected failed query execution