[MapleStory Worlds] "Mega Server" Dev - Item Sync

I ended up rewriting all the inventory/equipment item logic since it was previously tied to MSW's built-in item/inventory data structures.

Most of the stuff done was under-the-hood so-to-speak, I don't have a whole lot to show off at the moment.

personal high-level notes for stuff done
- Character Data Load [stats/ap/level/job]
- Partial population of stats window (only stats & details)
- Character Inventory/Equipment
- Convert to grid-based inventory
- Item System Overhaul/Rewrite
- Support all equipment slots (minus pet/mount slots)
- Character Costume
- Base character appearance
- Equipped items
- Double-click Character Info "inspection" window
- Equipped item list
- Avatar render
- Right-click Context Menu popup
- Context-sensitive options
- GM Report front-end