0.6.0

- New item type: Upgrade, modifies parts in more unique ways - Added an upgrade slot to all body, engine, special, converter, and type S/A weapon items - Added a second mod slot to B-type weapons - Added a new objective to target A9 to receive a body upgrade item - Added an upgrade item for all item types that can receive one, most of them are not obtainable but can be used in the sandbox - Replaced wing and body graphics to exclude the slot indentations - Added ability to change wing positions on certain slots on bodies and extensions - Reduced "Recharger" (Converter) cost to 1000kw - Added a preset variable "_t" that holds elapsed time - Exported/imported drones will respect their npc status - Removed npc toggle in new drone window, toggle it in the drone's context menu