get_virtualchest should return null if no virtual chest exists

[MariuszT]

So that I can check if selected virtual chest exists

[EntityReborn]

Kookster actually specifically requested that this return a new chest if one didn't exist, and all_virtualchests exists for a reason ;)

[MariuszT]

Don't you think so it's better to do it this way?

if (get_virtualchest('name') == null) { create_virtualchest(...options...) }

[EntityReborn]

Had a chat with Kookster, he's ok with this. Will merge.