additional commands

[Guarmanda]

1. add the command "/lc setpos all" for set the spawn location of all chest (better then setholo one per one and spend so much time if the server there more than 50 chest like my server)

2. add the command "/lc randomspawn all" for set the same randompsawn number for all chests.

[Guarmanda]

This should be linked to the future chest group feature, and also the chest setting future feature I think