[Meta] HTTP Output, Poller and Filter Integration Plugin

[roaksoax]

The HTTP Output, Poller and Filter are similar plugins which rely on the use of the http-mixin library. This means that these libraries rely on common functionality to communicate with the HTTP protocol. These plugins also share similar configuration options.

However, while these plugins are very common amongst each other internally, they don't necessarily align in functionality that should be common. A clear example is logstash-plugins/logstash-input-http_poller#140 . This functionality is available in HTTP Output , but not available in HTTP Poller Input nor in the HTTP Filter.

As such, it would be ideal to align all these plugins under an integration plugin and share similar functionality.