Add Fire, Rotation. Document Health, Hunger, Position, Velocity, Level, Solid

components-system branch: Big thanks to @Zidane for starting components up
Documented some values with "value in {link org.spongepowered.api.math.Vector3i Vector3i}" due to the fact that new people may not be used to using Vector3i
So what's the default duration of fire by setting this to true?