Introduce entity selectors.

[RkcBusterz]

Feature description

Dear, EssentialsX _developers Thanks for your hard work to prepare such a nice plugin. But I want to request you to bring entity selectors like @a @p @e like vanilla Minecraft. If you can then you can make more selectors for making the experience better.

New selectors may be like @cp, closest player selector except the player itself.

Actually I dont know if there is a feature for entity selectors in essentials x, but I wrote this because the entity selectors never work for me unless i use vanilla commands.

Thanks if you read this.

How the feature is useful

Its useful to players by making them not use minecraft:command @selector multiple times and we can experience nice gameplay.