fixed tooltips and made unhiding consumables actually save

Fixed the consumables tracker tracking iconic URIs instead of root URIs (making only placed consumables "unlock").

Consumables of different types will now only show up once the player has acquired one of them, and can be hidden by shift+right-clicking them.

fix to trading stall timers sometimes not being renewed

Reverted can_acquire_ai_lease check until it can be properly implemented on the item usage side.

Reverted z-index change: the frame will now sit underneath most/all other UI elements.

Saves position of tracker in user settings (game-independent).

Updated right-click feature of consumables to work with the new workshop UI code in unstable version 874.

Right-clicking consumables will open the appropriate crafter view; right-clicking trading stalls will move the camera to look at them.