API for various features provided by [Langcraft](https://github.com/SuperTails/langcraft). This allows for (limited) inline assembly, character-width text output, and some built-in world interaction.

### Turtle
The most intuitive way to interact with the world is the Turtle (represented by an armor stand). It is essentially a "cursor" that can be moved--the block at its current position can be changed or queried to perform basic input/output, such as drawing a "screen".