The default implicit constructor must also have a doc comment, so I have to make it explicit and either properly restrict the visibility of the constructor, or actually document it.
When an *OnlinePlayer class ask for permission, it always ask for Paper/Bungee API. The pandalib-permissions system will be called by Paper/Bungee only if it used and integrated into Paper/Bungee using the appropriate modules.
This commit reduces inter-dependencies between pandalib-(.*-)permissions modules and pandalib-(.*-)players (except pandalib-players-permissible that has to depends on pandalib-permissions)
