Redstone support - Basics

As wanted in #381 i'm splitting my pull request.

## Features
- [x] Basic redstone support
- [x] Torch placement
- [x] Redstone torch support
- [x] Redstone dust support

## TODO
- Nothing

## Requirements
- None

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*Edited by turt2live*

**Related Links:**
- Ticket: #116 
Couldn't this be stored on the chunk object itself?