Implemented trapped chests & others

+ Added trapped chests
* Fixed a bunch of bugs in the redstone simulator concerning wires and
repeaters
* Other potential bugfixes

With thanks.
But what about a repeater connected to a length of wire. You want the entire wire to update as soon as the repeater delay is over. If you keep the instant connections within the wire handler then the rest of the wire will update one tick after the first section of wire. I think a better model is that everything updates instantly but most things have an internal delay, like repeaters do. The repeater delays could be extended to other block types.