Add Delay and Damage Timer to /Bed command

[trentnbauer]

Hi!
I would love to see a delay enabled on the /bed command, forcing the player to stand still and not be attacked, similar to how essentials /home works.
I really love the /bed plugin as it also shows you where your bed was if it has been broken, whilst essentials /home would just TP you to spawn.

[HeroCC]

Completed by #23