Feature request

Feature description

Please add support for PlaceholderAPI (https://github.com/PlaceholderAPI/PlaceholderAPI) to EssentialsX.

How the feature is useful

This extension will give EssentialsX many customizability. It will give great possibilities for the motd, the chat, and custom language files to add many relevant and nice placeholders to this features.

Closing as a duplicate of #2391. Please discuss this subject there!