Lightweight Inventory Sorting

• Significantly reduced the amount of click operations when sorting the inventory
  • This helps prevent the "Too many packets sent" message on multiplayer servers
• Added optional Sort Delay setting to further slow down how quickly the inventory is sorted (milliseconds)
• Removed unnecessary images from the source, resulting in a significantly smaller file size

This was a complete overhaul of how the sorting was done, so there may be bugs I have not found in my testing. If one is encountered feel free to leave an issue on the github board.