Filled POSITIONS_BY_ITEM

[mms0316]

Needs work:

• Swapping between hotbar and inventory
• Dropping item with mouse
• Placing item in Crafting inventory and then closing inventory
• Changing items on the same inventory:
  • Splitting stack in half (right-click and dropping cursor on air slot in inventory)
  • Merging stacks (dropping cursor with item on non full item stack of same type)
  • Swapping stacks (dropping cursor with item on different item in inventory)
• Receiving item (e.g. getting Holocoins from Banker and /givecoins)
• Losing item (e.g. depositing Holocoins to Banker and /takecoins)
• Dropping one item without losing entire stack (Q button)

Seems to be working:

• Picking up item
• Dropping whole stack item with Q button or ctrl+Q
• Using shift key to switch inventories

[mms0316]

Fixed issues mentioned before, except with giving/taking items (not yet tested)

• Created DIRTY_INVENTORY to be used to do a single full cache when inventory closes
• Removed caching items unrelated to ITEMEVENT_EXECUTORS
• Removed handling PlayerItemHeldEvent for now
• Note: for some reason full caches are doing nothing on player login

[mms0316]

Reenabled handling PlayerItemHeldEvent

• It was an oversight not to test mouse scroll / number keys