add functionality to get diagnostics from kibana and beats

Even though these products to be diagnosed is still difficult, it can make sense to take this into consideration.
1. Kibana has already exposed lots of API calls, I identified at least more than 100 possible API calls against kibana, where could be obtained lots of helpful information:
even though still experimental, there is already very good documentation for these out there:
https://www.elastic.co/guide/en/kibana/current/api.html

2. For beats there is an endpoint as well:
https://www.elastic.co/guide/en/beats/filebeat/7.6/http-endpoint.html
As well as for debugging topics the the `--httpprof` endpoint and the profiler parameters `--cpuprofile`, `--memprofile`:
https://www.elastic.co/guide/en/beats/filebeat/current/command-line-options.html#run-command