Config option added to make tools never despawn
New config category for modifier options
Bring back extra modifiers for paper and thaumium

However, the parts cannot be swapped once added to a tool
Random tooltip stuff
Enabled paper fletchings
Cannot replace tool part with the same part
Allowed writable/thaumic parts to be replaced

As long as a modifier slot is available
Made leveling sound play when pick levels up
Added tooltip to parts if part replacement is on
Removed easter egg items
Clean up