Add config to prevent shiftclick into Tank carts

- If you shiftclick into a tank cart from your hotbar (slot 0-8) it will keep on spewing out items. This adds a config option to disable that.
- Added config option to prevent tank cart dupe or not.
Added config options

Added config options to prevent Tank cart dupe and glitch.
Merge pull request #6 from Taeir/patch-4

Fix for tank cart glitch