aviator

Adds a craftabel block to the game. After placing you will be granted fly priv in an area of 20 nodes radius from placed block. fly priv will be taken after 10 minutes.

The block can be digged and remaining time is saved Also the block will be saved to inventory if you go too far from it, if you leave the game or the server shuts down.

Added a chatcommand "/7" to call back your aviator to your inventory. This allows climbing and other more convinient use of it.