To assist the visually impaired by outputting events to chat for screen readers
adds a command to hurt entities, similar to /kill
adds one new mob; baby spiders, which spawn naturally in the world
Adds a few gravitite items, and compressed cobble to craft it.
![Gravitite [Forge]](https://media.forgecdn.net/avatars/thumbnails/475/963/256/256/637768550938532392.png)
