Add inventory logging

[3Mydlo3]

Some optional inventory logging (suggested by @sdsznsk during the mission on Monday) could be useful to quickly locate any equipment thiefs (intentional or not).

It could use InventoryOpened EH and InventoryClosed EH to check which items appeared/disappeared in player inventory but this could be very demanding as every player would fire the EH every time he opens his inventory.

Alternatively, on the server side for given container we could use ContainerOpened EH and compare the player loadout before and after he closes the container. This way we limit EH only to one object and one machine.