Convenient Additions

Features:
* slimes can now be harvested by right-clicking big slimes(size 3+) with a bucket
* added parachute (jump while falling to open/close; prevents damage from falling; good in combination with glider/valkyie wings gliding)

Tweaks:
* the seed box recipe now makes 2 seed boxes instead of just 1
* significantly lowered the glider's and valkyie wings' fall braking ability but also significantly increased gliding speed

Fixed Bugs:
* when holding an item the "jump" and "sneak" labels of the jump pad gui turned grey
* Item Transmitter didn't save it's item buffer when unloaded
* Remote Inventory Proxy didn't save it's location module when unloaded
* wireless item network learned to let go even if it is sad to say farewell - it used to hog on world references and therefore used a lot of memory
* weird behaviour of trinkets in combination with elytra
* shift-clicking in jump pad gui didn't work properly with the sneak-slot

Note:

This update changed a lot of stuff behind the scenes. This includes an implementation of a power system that isn't used yet. Also a lot of streamlining of TileEntity code so it should be faster for me to develop TileEntities in the near future.