TCP reporter missing documentation

[tech-Nico]

This reporter (https://github.com/gravitee-io/gravitee-reporter-tcp) is currently not listed among the reporters on this page: https://docs.gravitee.io/am/current/am_installguide_reporters.html
Moreover the above page should also include configuration for the ElasticSearch reporter (https://github.com/gravitee-io/gravitee-elasticsearch)

[plsstephenson]

TCP reporter also needs adding to this page: https://docs.gravitee.io/am/current/am_overview_plugins.html#gravitee-plugins-reporters
Does it also apply to APIM, which has equivalent reporters pages to the ones listed here?

[marcoboffi]

Release this documentation is very important to verify how bring api logs&metrics to external monitoring system (eg.syslog)